| Scientific Name
|
Common Name
|
Family
|
| Abelia x grandiflora | Glossy abelia | Caprifoliaceae |
| Abelmoschus esculentus | Okra, gumbo, lady's finger | Malvaceae |
| Abrus precatorius | Black-eyed Susan, rosary pea | Fabaceae |
| Abutilon eremitopetalum * | Hidden petal abutilon | Malvaceae |
| Abutilon grandifolium | Hairy abutilon | Malvaceae |
| Abutilon incanum * | Hoary abutilon | Malvaceae |
| Abutilon megapotamicum | Trailing abutilon | Malvaceae |
| Abutilon menziesii * | Kooloaula | Malvaceae |
| Abutilon pictum | Lantern ilima, royal ilima | Malvaceae |
| Acacia aneura | Mulga acacia | Fabaceae |
| Acacia auriculiformis | Earpod wattle | Fabaceae |
| Acacia confusa | Formosa koa | Fabaceae |
| Acacia farnesiana | Klu | Fabaceae |
| Acacia koa * | Koa | Fabaceae |
| Acacia koaia * | Koaia, dwarf koa | Fabaceae |
| Acacia mangium | Mangium wattle | Fabaceae |
| Acacia mearnsii | Black wattle | Fabaceae |
| Acacia melanoxylon | Australian blackwood | Fabaceae |
| Acacia podalyriifolia | Queensland silver wattle | Fabaceae |
| Acacia retinodes | Water wattle | Fabaceae |
| Acalypha hispida | Chenille plant, red hot cattail | Euphorbiaceae |
| Acalypha reptans | Cat tail | Euphorbiaceae |
| Acalypha wilkesiana | Copper leaf, beefsteak | Euphorbiaceae |
| Acanthospermum australe | Spiny-bur, Paraguay bur, ihi kukae hipa, pipili | Asteraceae |
| Acca sellowiana | Pineapple guava | Myrtaceae |
| Acer buergerianum | Trident maple | Sapindaceae |
| Acer palmatum | Japanese maple | Sapindaceae |
| Acer sp. | Maple | Sapindaceae |
| Achillea millefolium | Common yarrow, milfoil | Asteraceae |
| Achyranthes aspera var. aspera | Prickly achyranthes | Amaranthaceae |
| Achyranthes splendens var. splendens * | Achyranthes | Amaranthaceae |
| Acoelorrhaphe wrightii | Saw palmetto | Arecaceae |
| Acorus sp. | Sweet flag | Araceae |
| Adansonia digitata | Boabab, bottle tree, dead rat tree | Bombacaceae |
| Adansonia madagascariensis | Baobab | Bombacaceae |
| Adenanthera pavonina | Red sandalwood, false wiliwili | Fabaceae |
| Adenium obesum | Desert rose, mock azalea | Apocynaceae |
| Adenophorus tamariscinus * | Wahine noho mauna | Grammitidaceae |
| Adiantum hispidulum | Rough maidenhair fern | Pteridaceae |
| Adiantum raddianum | Maidenhair fern | Pteridaceae |
| Adiantum sp. | Maidenhair fern | Pteridaceae |
| Aechmea fasciata | Silver vase, urn plant | Bromeliaceae |
| Aeonium sp. | Aeonium | Crassulaceae |
| Aeschynanthus pulcher | Lipstick plant, scarlet basket vine | Gesneriaceae |
| Afrocarpus falcatus | Sickle leaved yellowwood, Outeniqua yellowwood | Podocarpaceae |
| Agapanthus praecox subsp. orientalis | Lily of the Nile | Liliaceae |
| Agapanthus sp. | Lily of the Nile | Liliaceae |
| Agastache foeniculum | Anise hyssop, licorice mint | Lamiaceae |
| Agathis robusta | Queensland kauri | Araucariaceae |
| Agave americana | Century plant | Agavaceae |
| Agave attenuata | Swan's neck agave | Agavaceae |
| Agave filifera | Thread leaf agave | Agavaceae |
| Agave guiengola | Agave | Agavaceae |
| Agave potatorum | Agave | Agavaceae |
| Agave sisalana | Sisal | Agavaceae |
| Agave sp. | Agave | Agavaceae |
| Agave tequilana | Blue agave, tequila agave | Agavaceae |
| Agave utahensis | Utah agave | Agavaceae |
| Agave vivipara | Agave | Agavaceae |
| Ageratina adenophora | Maui pamakani, pamakani haole | Asteraceae |
| Ageratina riparia | Hamakua pamakani, spreading mist flower | Asteraceae |
| Ageratum conyzoides | Ageratum, maile honohono, billygoat weed | Asteraceae |
| Ageratum houstonianum | Maile honohono, maile kula, maile hohono | Asteraceae |
| Aglaia odorata | Chinese rice flower, mei sui lan | Meliaceae |
| Aglaia saltatorum | Langakali | Meliaceae |
| Aglaonema commutatum | Chinese evergreen | Araceae |
| Aglaonema sp. | Aglaonema | Araceae |
| Agrostis avenacea * | Heupueo | Poaceae |
| Agrostis sandwicensis * | Bentgrass | Poaceae |
| Agrostis stolonifera | Creeping bentgrass | Poaceae |
| Aira caryophyllea | Silver hairgrass | Poaceae |
| Ajuga reptans | Bugleweed, carpet bugleweed | Lamiaceae |
| Albizia lebbeck | Siris tree | Fabaceae |
| Albizia zygia | Albizia | Fabaceae |
| Alectryon macrococcus var. auwahiensis * | Mahoe | Sapindaceae |
| Alectryon macrococcus var. macrococcus * | Mahoe | Sapindaceae |
| Aleurites moluccana | Kukui, kukui nut | Euphorbiaceae |
| Allamanda blanchetii | Purple allamanda | Apocynaceae |
| Allamanda cathartica | Yellow allamanda | Apocynaceae |
| Allamanda schottii | Bush allamanda | Apocynaceae |
| Allium ampeloprasum | Leeks | Liliaceae |
| Allium cepa | Onion, Maui onion | Liliaceae |
| Allium fistulosum | Green onion, bunching onion | Liliaceae |
| Allium sativum | Garlic | Liliaceae |
| Allium schoenoprasum | Chives | Liliaceae |
| Allium tuberosum | Garlic chives, Chinese chives | Liliaceae |
| Alocasia macrorrhizos | Ape | Araceae |
| Alocasia micholitziana | African mask | Araceae |
| Alocasia odora | Giant upright elephant ear | Araceae |
| Alocasia plumbea | Elephant ear, metallic taro | Araceae |
| Alocasia reginula | Black velvet taro | Araceae |
| Alocasia sp. | Alocasia | Araceae |
| Aloe arborescens | Shrub aloe | Asphodelaceae |
| Aloe barberae | Tree aloe | Aloeaceae |
| Aloe sp. | Unknown aloe | Asphodelaceae |
| Aloe suzannae | Aloe | Asphodelaceae |
| Aloe vera | Aloe, aloe vera, common aloe | Asphodelaceae |
| Alphitonia ponderosa * | Kauila | Rhamnaceae |
| Alpinia calcarata | Miniature ginger | Zingiberaceae |
| Alpinia galanga | Thai ginger, greater galangal | Zingiberaceae |
| Alpinia purpurata | Red ginger | Zingiberaceae |
| Alpinia zerumbet | Shell ginger | Zingiberaceae |
| Alstroemeria sp. | Peruvian lily | Liliaceae |
| Alternanthera brasiliana | Ruby leaf, black night, upright calico plant | Amaranthaceae |
| Alternanthera caracasana | Mat chaff flower | Amaranthaceae |
| Alternanthera porrigens | Dwarf bozu | Amaranthaceae |
| Alternanthera pungens | Khaki weed | Amaranthaceae |
| Alternanthera sessilis | Sessile joyweed | Amaranthaceae |
| Alternanthera tenella | Joy weed | Amaranthaceae |
| Alysicarpus vaginalis | Alyce clover | Fabaceae |
| Alyxia oliviformis * | Maile | Apocynaceae |
| Amaranthus dubius | Spleen amaranth | Amaranthaceae |
| Amaranthus hybridus | Green amaranth | Amaranthaceae |
| Amaranthus sp. | Amaranth | Amaranthaceae |
| Amaranthus spinosus | Spiny amaranth, pakai kuku | Amaranthaceae |
| Amaranthus viridis | Slender amaranth, aheahea, pakapakai | Amaranthaceae |
| Amarcrinum howardii | Amarcrinum | Liliaceae |
| Ambrosia artemisiifolia | Ambrosia | Asteraceae |
| Anacardium occidentale | Cashew | Anacardiaceae |
| Anadenanthera colubrina | Vika, huilco, wilco, cebil, angico | Fabaceae |
| Anagallis arvensis | Scarlet pimpernel | Myrsinaceae |
| Ananas ananassoides | Cerrado pineapple | Bromeliaceae |
| Ananas comosus | Pineapple | Bromeliaceae |
| Andropogon glomeratus | Bushy bluestem | Poaceae |
| Andropogon glomeratus var. pumilus | Bushy bluestem | Poaceae |
| Andropogon virginicus | Broomsedge | Poaceae |
| Anemone hupehensis | Japanese anemone | Ranunculaceae |
| Anethum graveolens | Dill weed | Apiaceae |
| Angelonia angustifolia | Narrowleaf angelon | Scrophulariaceae |
| Angelonia salicariifolia | Angelonia | Scrophulariaceae |
| Angiopteris evecta | Mule's-foot fern | Marattiaceae |
| Angophora costata | Gum myrtle | Myrtaceae |
| Anigozanthos flavidus | Kangaroo paw | Haemodoraceae |
| Annona cherimola | Cherimoya, custard apple | Annonaceae |
| Annona glabra | Pond apple | Annonaceae |
| Annona muricata | Soursop | Annonaceae |
| Annona squamosa | Sugar apple, sweet sop, custard apple | Annonaceae |
| Anoectochilus sandvicensis * | Jewel orchid | Orchidaceae |
| Anredera cordifolia | Madeira vine, mignonette vine, uala hupe | Basellaceae |
| Anthoxanthum odoratum | Sweet vernalgrass | Poaceae |
| Anthurium andraeanum | Flamingo lily | Araceae |
| Antidesma platyphyllum * | Hame | Phyllanthaceae |
| Antigonon leptopus | Mexican creeper | Polygonaceae |
| Antirrhinum majus | Snapdragon | Plantaginaceae |
| Antirrhinum orontium | Lesser snapdragon | Plantaginaceae |
| Aphelandra sinclairiana | Coral aphelandra | Acanthaceae |
| Apium graveolens | Wild celery, Chinese celery, khueu chai | Apiaceae |
| Apium graveolens var. dulce | Celery | Apiaceae |
| Aptenia cordifolia | Rock rose | Aizoaceae |
| Arachis pintoi | Golden glory | Fabaceae |
| Arachniodes simplicior | East Indian holly fern | Polypodiaceae |
| Araucaria bidwillii | Bunya pine | Araucariaceae |
| Araucaria columnaris | Cook pine | Araucariaceae |
| Araucaria cunninghamii | Moreton Bay pine, hoop pine | Araucariaceae |
| Araucaria heterophylla | Norfolk Island pine | Araucariaceae |
| Archontophoenix alexandrae | Alexander palm | Arecaceae |
| Archontophoenix cunninghamiana | King palm, bangalow palm, piccabeen palm | Arecaceae |
| Archontophoenix sp. | Alexander palm | Arecaceae |
| Arctotheca calendula | Capeweed | Asteraceae |
| Ardisia crenata | Hilo holly | Myrsinaceae |
| Ardisia elliptica | Shoebutton ardisia | Myrsinaceae |
| Ardisia escallonioides | Marlberry, dogberry | Myrsinaceae |
| Areca catechu | Betel nut palm | Arecaceae |
| Arenaria serpyllifolia | Thyme-leaved sandwort | Caryophyllaceae |
| Argemone glauca * | Pua kala | Papaveraceae |
| Argemone mexicana | Mexican poppy | Papaveraceae |
| Argyranthemum frutescens | Paris daisy, Marguerite daisy | Asteraceae |
| Argyranthemum sp. | Argyranthemum | Asteraceae |
| Argyreia nervosa | Silver morning glory, baby wood rose | Convolvulaceae |
| Argyroxiphium caliginis * | Eke silversword | Asteraceae |
| Argyroxiphium grayanum * | Greensword | Asteraceae |
| Argyroxiphium kauense * | Ahinahina, Kau silversword | Asteraceae |
| Argyroxiphium sandwicense subsp. macrocephalum * | Ahinahina, hinahina, Haleakala silversword | Asteraceae |
| Argyroxiphium sandwicense subsp. sandwicense * | Ahinahina, hinahina, Mauna Kea silversword | Asteraceae |
| Argyroxiphium x Dubautia * | Silversword hybrid | Asteraceae |
| Aristolochia littoralis | Calico flower | Aristolochiaceae |
| Arrhenatherum elatius | Arrhenatherum | Poaceae |
| Artabotrys hexapetalus | Climbing ylang-ylang | Annonaceae |
| Artemisia australis * | Ahinahina, hinahina, hinahina kuahiwi | Asteraceae |
| Artemisia dracunculus | French tarragon | Asteraceae |
| Artemisia mauiensis * | Ahinahina, hinahina | Asteraceae |
| Artemisia mauiensis var. diffusa * | Ahinahina, hinahina | Asteraceae |
| Arthrostemma ciliatum | Arthrostema | Melastomataceae |
| Artocarpus altilis | Breadfruit | Moraceae |
| Artocarpus heterophyllus | Jackfruit | Moraceae |
| Artocarpus lingnanensis | Kwai muk | Moraceae |
| Artocarpus nitidus subsp. lingnanensis | Gui mu | Moraceae |
| Artocarpus odoratissimus | Marang | Moraceae |
| Artocarpus sericicarpus | Pedalai, gomihan, gumihan | Moraceae |
| Arundina graminifolia | Bamboo orchid | Orchidaceae |
| Arundo donax | Giant reed | Poaceae |
| Asclepias curassavica | Butterfly weed, bloodflower, laulele, pua anuhe | Apocynaceae |
| Asclepias physocarpa | Balloon plant | Apocynaceae |
| Asparagus asparagoides | Smilax, bridal creeper | Asparagaceae |
| Asparagus densiflorus | Asparagus fern, foxtail asparagus, sprengeri | Asparagaceae |
| Asparagus officinalis | Asparagus | Asparagaceae |
| Asparagus setaceus | Asparagus fern | Asparagaceae |
| Asplenium acuminatum * | Lola | Aspleniaceae |
| Asplenium adiantum-nigrum * | Iwaiwa | Aspleniaceae |
| Asplenium aethiopicum * | Iwaiwa a Kane | Aspleniaceae |
| Asplenium contiguum * | Asplenium | Aspleniaceae |
| Asplenium lobulatum * | Piipii lau manamana, analii | Aspleniaceae |
| Asplenium macraei * | Iwaiwa lau lii | Aspleniaceae |
| Asplenium nidus * | Ekaha | Aspleniaceae |
| Asplenium polyodon * | Punana manu | Aspleniaceae |
| Asplenium sp. * | Asplenium | Aspleniaceae |
| Asplenium trichomanes subsp. densum * | Maidenhair spleenwort | Aspleniaceae |
| Astelia menziesiana * | Painiu, kaluaha, pua akuhinia | Liliaceae |
| Asteriscus maritimus | Compact gold coin, Mediterranean beach daisy | Asteraceae |
| Asystasia gangetica | Chinese violet, coromandel | Acanthaceae |
| Asystasia sp. | Asystasia | Acanthaceae |
| Athyrium microphyllum * | Akolea | Athyriaceae |
| Atriplex canescens | Four wing saltbush | Chenopodiaceae |
| Atriplex lentiformis | Tree atriplex, lens scale, quailbush | Chenopodiaceae |
| Atriplex semibaccata | Australian saltbush | Chenopodiaceae |
| Atriplex suberecta | Saltbush | Chenopodiaceae |
| Atuna racemosa subsp. racemosa | Atuna | Chrysobalanaceae |
| Austrocylindropuntia subulata | Eve's pin cactus, can cholla | Cactaceae |
| Averrhoa bilimbi | Bilimbi, cucumber tree | Oxalidaceae |
| Averrhoa carambola | Star fruit, carambola | Oxalidaceae |
| Avicennia germinans | Black mangrove | Verbenaceae |
| Axonopus compressus | Wide-leaved carpetgrass | Poaceae |
| Axonopus fissifolius | Common carpetgrass | Poaceae |
| Azadirachta indica | Neem | Meliaceae |
| Azolla filiculoides | Ferny azolla, large mosquito fern | Azollaceae |
| Baccharis halimifolia | Groundsel bush, consumption weed | Asteraceae |
| Bacopa monnieri * | Aeae | Plantaginaceae |
| Bambusa glaucophylla | Dwarf Malay bamboo | Poaceae |
| Bambusa lako | Timor black bamoo | Poaceae |
| Bambusa multiplex | Hedge bamboo | Poaceae |
| Bambusa oldhami | Old hamii, giant timber bamboo | Poaceae |
| Bambusa textilis | Weaver's bamboo | Poaceae |
| Bambusa ventricosa | Buddha belly bamboo | Poaceae |
| Bambusa vulgaris | Common bamboo, giant yellow clumping bamboo | Poaceae |
| Banksia integrifolia | Coast banksia | Proteaceae |
| Banksia menziesii | Menzies banksia | Proteaceae |
| Banksia sp. | Banksia | Proteaceae |
| Barleria albostellata | Downy barleria | Acanthaceae |
| Barleria cristata | Philippine violet | Acanthaceae |
| Barleria repens | Barleria | Acanthaceae |
| Barringtonia asiatica | Barringtonia, hotu, hutu, shaving brush tree | Lecythidaceae |
| Bartlettina sordida | Bartlettina | Asteraceae |
| Basella alba | Ceylon spinach | Basellaceae |
| Bassia hyssopifolia | Bassia | Chenopodiaceae |
| Batis maritima | Pickleweed, akulikuli kai | Bataceae |
| Bauhinia galpinii | Pride of the Cape, red bauhinia, nasturtium bauhinia | Fabaceae |
| Bauhinia hookeri | Mountain ebony | Fabaceae |
| Bauhinia monandra | Pink bauhinia, orchid tree, Napoleon's plume | Fabaceae |
| Bauhinia purpurea | Orchid tree | Fabaceae |
| Bauhinia sp. | Bauhinia | Fabaceae |
| Bauhinia variegata | Orchid tree | Fabaceae |
| Bauhinia x blakeana | Hong Kong orchid tree | Fabaceae |
| Begonia foliosa | Fern begonia, fern leaf begonia | Begoniaceae |
| Begonia hirtella | Begonia | Begoniaceae |
| Begonia odorata | Begonia | Begoniaceae |
| Begonia sp. | Begonia | Begoniaceae |
| Belamcanda chinensis | Hiogi, blackberry-lily, leopard flower | Iridaceae |
| Beta vulgaris | Beet | Chenopodiaceae |
| Beta vulgaris subsp. cicla | Chard, Swiss chard, spinach beet | Chenopodiaceae |
| Bidens alba var. radiata | Beggartick | Asteraceae |
| Bidens cynapiifolia | Blue bidens | Asteraceae |
| Bidens hillebrandiana * | Kookoolau | Asteraceae |
| Bidens mauiensis * | Kookoolau | Asteraceae |
| Bidens menziesii * | Kookoolau | Asteraceae |
| Bidens menziesii subsp. filiformis * | Kookoolau | Asteraceae |
| Bidens menziesii x mauiense * | Kookoolau hybrid | Asteraceae |
| Bidens micrantha * | Kookoolau | Asteraceae |
| Bidens micrantha subsp. kalealaha * | Kookoolau | Asteraceae |
| Bidens micrantha subsp. micrantha * | Kookoolau | Asteraceae |
| Bidens pilosa | Spanish needle, ki, ki nehe, ki pipili, nehe | Asteraceae |
| Bidens wiebkei * | Kookoolau | Asteraceae |
| Bischofia javanica | Bischofia, Javanese bishopwood | Phyllanthaceae |
| Bismarckia nobilis | Bismarck palm | Arecaceae |
| Bixa orellana | Annatto, achiote, lipstick tree, alaea laau, kumauna | Bixaceae |
| Blechnum appendiculatum | Blechnum | Blechnaceae |
| Blechnum gibbum | Dwarf tree fern | Blechnaceae |
| Blechum pyramidatum | Blechum | Acanthaceae |
| Bobea elatior * | Ahakea | Rubiaceae |
| Bocconia frutescens | Tree poppy | Papaveraceae |
| Boehmeria grandis * | Akolea | Urticaceae |
| Boerhavia acutifolia * | Alena | Nyctaginaceae |
| Boerhavia coccinea | Boerhavia | Nyctaginaceae |
| Boerhavia herbstii * | Alena | Nyctaginaceae |
| Boerhavia repens * | Alena | Nyctaginaceae |
| Boerhavia sp. * | Alena | Nyctaginaceae |
| Bolboschoenus maritimus * | Kaluha | Cyperaceae |
| Bombax ceiba | Red silk cotton tree, kapok | Bombacaceae |
| Bonamia menziesii * | Bonamia | Convolvulaceae |
| Bontia daphnoides | Bontia | Myoporaceae |
| Bothriochloa barbinodis | Fuzzy top | Poaceae |
| Bothriochloa bladhii | Airport grass | Poaceae |
| Bothriochloa laguroides | Beardgrass | Poaceae |
| Bothriochloa pertusa | Pitted beardgrass | Poaceae |
| Bothriochloa sp. | Beardgrass | Poaceae |
| Bougainvillea sp. | Bougainvillea | Nyctaginaceae |
| Bougainvillea spectabilis | Bougainvillea | Nyctaginaceae |
| Bougainvillea x buttiana | Bougainvillea | Nyctaginaceae |
| Bouvardia ternifolia | Scarlet bouvardia | Rubiaceae |
| Brachychiton acerifolius | Flame bottle tree | Sterculiaceae |
| Brachycome multifida | Cut leaf daisy | Asteraceae |
| Brachycome sp. | Brachycome | Asteraceae |
| Bracteantha bracteata | Strawflower, golden everlasting daisy | Asteraceae |
| Brassica campestris var. chinensis | Bok choi, pak choi, pak choy, pok choi | Brassicaceae |
| Brassica juncea | Mustard cabbage | Brassicaceae |
| Brassica nigra | Black mustard, makeke | Brassicaceae |
| Brassica oleracea | Kale, brussel sprout | Brassicaceae |
| Brassica oleracea var. alboglabra | Kailaan | Brassicaceae |
| Brassica oleracea var. botrytis | Broccoli, cauliflower | Brassicaceae |
| Brassica oleracea var. capitata | Cabbage | Brassicaceae |
| Brassica rapa | Chinese cabbage | Brassicaceae |
| Brassica rapa var. rapa | Turnip | Brassicaceae |
| Brassica rapa var. rosularis | Tatsoi | Brassicaceae |
| Brassica sp. | Unknown brassica | Brassicaceae |
| Brexia madagascariensis | Brexia | Saxifragaceae |
| Breynia disticha | Snowbush, foliage flower | Phyllanthaceae |
| Brighamia insignis * | Olulu, pu aupaka, alula, haha | Campanulaceae |
| Brighamia rockii * | Pua ala, alula, haha | Campanulaceae |
| Brighamia sp. * | Brighamia | Campanulaceae |
| Briza maxima | Big quaking grass | Poaceae |
| Briza minor | Little quaking grass | Poaceae |
| Bromus catharticus | Rescue grass | Poaceae |
| Bromus diandrus | Ripgut grass | Poaceae |
| Bromus hordeaceus | Soft chess | Poaceae |
| Bromus rubens | Red brome | Poaceae |
| Bromus sp. | Bromus | Poaceae |
| Bromus tectorum | Cheat grass | Poaceae |
| Broussaisia arguta * | Kanawao | Hydrangeaceae |
| Broussonetia luzonica | Alakon, alucon, himbabao | Moraceae |
| Broussonetia papyrifera | Wauke | Moraceae |
| Brugmansia x candida | Angel's trumpet | Solanaceae |
| Brunfelsia australis | Yesterday today and tomorrow plant | Solanaceae |
| Brunfelsia sp. | Brunfelsia | Solanaceae |
| Buchloe dactyloides | Buffalo grass | Poaceae |
| Bucida buceras | Jucaro, geometry tree | Combretaceae |
| Buddleja asiatica | Dog tail, huelo ilio | Scrophulariaceae |
| Buddleja davidii | Butterfly bush | Scrophulariaceae |
| Buddleja madagascariensis | Smoke bush | Scrophulariaceae |
| Bulbine frutescens | Stalked bulbine | Asphodelaceae |
| Bunchosia argentea | Peanut butter fruit | Malpighiaceae |
| Burbidgea schizocheila | Golden brush, golden ginger | Zingiberaceae |
| Bursera simaruba | Gumbo limbo, West Indian birch | Burseraceae |
| Butia capitata | Pindo palm, jelly palm | Arecaceae |
| Buxus microphylla var. japonica | Japanese boxwood | Buxaceae |
| Buxus sempervirens | Boxwood | Buxaceae |
| Buxus sp. | Boxwood | Buxaceae |
| Caesalpinia bonduc * | Yellow nickers | Fabaceae |
| Caesalpinia decapetala | Cat's claw, wait a bit, Mysore thorn, pua kelekino | Fabaceae |
| Caesalpinia ferrea | Brazilian ironwood | Fabaceae |
| Caesalpinia pulcherrima | Ohai alii, dwarf poinciana, pride of Barbados, bird of paradise | Fabaceae |
| Cajanus cajan | Pigeon pea, dahl | Fabaceae |
| Caladium bicolor | Caladium, heart of Jesus | Araceae |
| Caladium lindenii | Indian kale | Araceae |
| Caladium sp. | Caladium | Araceae |
| Calathea crotalifera | Rattlesnake plant | Marantaceae |
| Calathea cylindrica | Green Ice | Marantaceae |
| Calathea roseopicta | Rose painted calathea, medallion | Marantaceae |
| Calathea sp. | Prayers plant | Marantaceae |
| Calathea zebrina | Zebra plant | Marantaceae |
| Calendula officinalis | Pot marigold | Asteraceae |
| Calibrachoa sp. | Calibrachoa | Solanaceae |
| Calliandra haematocephala | Red powderpuff | Fabaceae |
| Calliandra houstoniana var. calothyrsus | Tree calliandra | Fabaceae |
| Calliandra sp. | Calliandra | Fabaceae |
| Calliandra surinamensis | Surinam powderpuff, pink powderpuff | Fabaceae |
| Callicarpa americana | American beautyberry | Verbenaceae |
| Callisia fragrans | Basket plant | Commelinaceae |
| Callisia repens | Inch plant | Commelinaceae |
| Callistemon citrinus | Red bottle brush, lemon bottle brush | Myrtaceae |
| Callistemon sp. | Bottle brush | Myrtaceae |
| Callistemon viminalis | Weeping bottle brush | Myrtaceae |
| Callitris sp. | Cypress-pine | Cupressaceae |
| Calocedrus decurrens | Incense cedar | Cupressaceae |
| Calophyllum inophyllum | Kamani | Clusiaceae |
| Calophyllum soulattri | Nicobar canoe tree | Clusiaceae |
| Calopogonium galactioides | Calopogonium | Fabaceae |
| Calotropis gigantea | Crown flower | Asclepiadaceae |
| Calotropis procera | Small crown flower | Asclepiadaceae |
| Calyptocarpus vialis | Calyptocarpus, straggler daisy | Asteraceae |
| Camellia japonica | Camellia | Theaceae |
| Cananga odorata | Ylang-ylang | Annonaceae |
| Canavalia cathartica | Maunaloa | Fabaceae |
| Canavalia hawaiiensis * | Awikiwiki, puakauhi | Fabaceae |
| Canavalia molokaiensis * | Awikiwiki | Fabaceae |
| Canavalia pubescens * | Awikiwiki | Fabaceae |
| Canavalia sericea | Silky jackbean | Fabaceae |
| Canna flaccida | Golden canna | Cannaceae |
| Canna glauca | Water canna | Cannaceae |
| Canna indica | Indian shot, canna | Cannaceae |
| Canna jaegeriana | Caribbean canna | Cannaceae |
| Canna x generalis | Garden canna | Cannaceae |
| Capparis sandwichiana * | Maiapilo, pua pilo, pilo, Hawaiian caper bush | Brassicaceae |
| Capsella bursa-pastoris | Sheperd's purse | Brassicaceae |
| Capsicum annuum | Bell pepper, chili pepper | Solanaceae |
| Carapa guianensis | Andiroba, crabwood | Meliaceae |
| Cardiospermum sp. | Heartseed, balloon vine, poniu, pohuehue uka | Sapindaceae |
| Carex alligata * | Carex | Cyperaceae |
| Carex comans | Hair sedge | Cyperaceae |
| Carex hachijoensis | Evergold sedge | Cyperaceae |
| Carex longii | Carex | Cyperaceae |
| Carex macloviana subsp. subfusca * | Carex | Cyperaceae |
| Carex sp. * | Carex | Cyperaceae |
| Carex wahuensis * | Carex | Cyperaceae |
| Carica papaya | Papaya, mikana, hei, milikana, papaia, pawpaw | Caricaceae |
| Carissa macrocarpa | Natal plum | Apocynaceae |
| Carludovica palmata | Panama-hat palm | Cyclanthaceae |
| Carludovica sp. | Jungle drum | Cyclanthaceae |
| Carmona retusa | Fukien tea, Philippine tea, carmona | Boraginaceae |
| Carpobrotus sp. | Ice plant, hottentot fig | Aizoaceae |
| Carya pecan | Pecan | Juglandaceae |
| Caryota gigas | Giant fish tail palm | Arecaceae |
| Caryota mitis | Clumping fish tail palm | Arecaceae |
| Caryota sp. | Fish tail palm | Arecaceae |
| Caryota urens | Solitary fish tail palm | Arecaceae |
| Casimiroa edulis | White sapote | Rutaceae |
| Cassia fistula | Golden shower tree | Fabaceae |
| Cassia grandis | Pink shower tree, coral shower, horse shower | Fabaceae |
| Cassia javanica | Pink shower tree | Fabaceae |
| Cassia roxburghii | Ceylon senna, red cassia | Fabaceae |
| Cassia sp. | Shower tree | Fabaceae |
| Cassia x nealiae | Rainbow shower tree | Fabaceae |
| Cassytha filiformis * | Kaunaoa pehu | Lauraceae |
| Castanea dentata | American chesnut | Fagaceae |
| Castanospermum australe | Moreton Bay chestnut, Australian chestnut | Fabaceae |
| Castilleja arvensis | Indian paintbrush | Orobanchaceae |
| Casuarina equisetifolia | Ironwood | Casuarinaceae |
| Casuarina glauca | Longleaf ironwood | Casuarinaceae |
| Catalpa longissima | Yoke-wood | Bignoniaceae |
| Catharanthus roseus | Madagascar periwinkle, kihapai, vinca | Apocynaceae |
| Cattleya sp. | Cattleya orchid | Orchidaceae |
| Cecropia obtusifolia | Guarumo, trumpet tree | Urticaceae |
| Cedrela odorata | West Indian cedar | Meliaceae |
| Cedrela serrata | Hill toon | Meliaceae |
| Ceiba pentandra | Kapok | Bombacaceae |
| Celosia sp. | Cockscomb, wool flowers | Amaranthaceae |
| Cenchrus agrimonioides var. agrimonioides * | Kamanomano | Poaceae |
| Cenchrus ciliaris | Buffel grass | Poaceae |
| Cenchrus echinatus | Sandbur | Poaceae |
| Cenchrus setigerus | Cenchrus | Poaceae |
| Cenchrus tribuloides | Sanddune sandbur | Poaceae |
| Centaurea cyanus | Garden cornflower, bachelor's button | Asteraceae |
| Centaurea melitensis | Napa thistle, yellow star thistle | Asteraceae |
| Centaurium erythraea subsp. erythraea | Bitter herb | Gentianaceae |
| Centaurium sebaeoides * | Awiwi | Gentianaceae |
| Centella asiatica | Asiatic pennywort, pohe kula | Apiaceae |
| Centranthus ruber | Valerian | Valerianaceae |
| Centratherum punctatum subsp. punctatum | Centratherum | Asteraceae |
| Centrosema molle | Soft butterfly pea | Fabaceae |
| Cerastium glomeratum | Cerastium | Caryophyllaceae |
| Ceratonia siliqua | Carob, St. John's Bread, kelakio | Fabaceae |
| Ceratopetalum gummiferum | New South Wales Christmas tree | Cunoniaceae |
| Cerbera manghas | Cerbera, reva | Apocynaceae |
| Cerbera sp. | Cerbera | Apocynaceae |
| Cereus peruvianus | Hedge cactus, apple cactus | Cactaceae |
| Cereus uruguayanus | Hedge cactus | Cactaceae |
| Cestrum diurnum | Day cestrum | Solanaceae |
| Cestrum elegans | Pink cestrum, red cestrum, purple cestrum | Solanaceae |
| Cestrum nocturnum | Night cestrum, night blooming jasmine | Solanaceae |
| Chamaecrista nictitans | Partridge pea | Fabaceae |
| Chamaecyparis lawsoniana | Lawson cypress, Port Orford cedar | Cupressaceae |
| Chamaedorea cataractarum | Cascade palm, cat palm | Arecaceae |
| Chamaedorea elegans | Parlor palm, neanthe bella, good luck palm | Arecaceae |
| Chamaedorea metallica | Metal palm tree | Arecaceae |
| Chamaedorea seifrizii | Bamboo palm | Arecaceae |
| Chamaerops humilis | European fan palm | Arecaceae |
| Chamaesyce celastroides * | Akoko | Euphorbiaceae |
| Chamaesyce celastroides var. amplectens * | Akoko | Euphorbiaceae |
| Chamaesyce celastroides var. laehiensis * | Akoko | Euphorbiaceae |
| Chamaesyce celastroides var. lorifolia * | Akoko | Euphorbiaceae |
| Chamaesyce celastroides var. stokesii * | Akoko | Euphorbiaceae |
| Chamaesyce degeneri * | Akoko | Euphorbiaceae |
| Chamaesyce hirta | Hairy spurge | Euphorbiaceae |
| Chamaesyce hypericifolia | Graceful spurge | Euphorbiaceae |
| Chamaesyce hyssopifolia | Hyssopleaf sandmat | Euphorbiaceae |
| Chamaesyce kuwaleana * | Akoko | Euphorbiaceae |
| Chamaesyce maculata | Spurge | Euphorbiaceae |
| Chamaesyce olowaluana * | Akoko | Euphorbiaceae |
| Chamaesyce prostrata | Prostrate spurge | Euphorbiaceae |
| Chamaesyce skottsbergii * | Akoko | Euphorbiaceae |
| Chamaesyce sp. * | Akoko | Euphorbiaceae |
| Chamaesyce thymifolia | Spurge | Euphorbiaceae |
| Chamelaucium uncinatum | Geraldton wax flower | Myrtaceae |
| Charpentiera obovata * | Papala | Amaranthaceae |
| Cheirodendron trigynum * | Olapa, lapalapa | Araliaceae |
| Chenopodium album | Lamb's quarters | Chenopodiaceae |
| Chenopodium ambrosioides | Mexican tea | Chenopodiaceae |
| Chenopodium carinatum | Chenopodium | Chenopodiaceae |
| Chenopodium murale | Lamb's quarters | Chenopodiaceae |
| Chenopodium oahuense * | Aweoweo | Chenopodiaceae |
| Chicorium intybus | Radicchio | Asteraceae |
| Chloris barbata | Swollen fingergrass | Poaceae |
| Chloris gayana | Rhodes grass | Poaceae |
| Chloris radiata | Radiate fingergrass | Poaceae |
| Chloris sp. | Fingergrass | Poaceae |
| Chloris virgata | Feather fingergrass | Poaceae |
| Chlorophytum comosum | Spider plant, airplane plant | Liliaceae |
| Chlorophytum sp. | Chlorophytum | Liliaceae |
| Chorisia speciosa | Floss silk tree | Bombacaceae |
| Christella cyatheoides * | Kikawaio | Thelypteridaceae |
| Christella dentata | Downy wood fern | Thelypteridaceae |
| Christella dentata x parasitica * | Hybrid christella | Thelypteridaceae |
| Christella parasitica | Christella | Thelypteridaceae |
| Christella sp. * | Christella | Thelypteridaceae |
| Chrysalidocarpus lutescens | Areca palm, golden fruited palm | Arecaceae |
| Chrysanthemum sp. | Mums, chrysanthemum | Asteraceae |
| Chrysobalanus icaco | Chrysobalanus, cocoplum | Chrysobalanaceae |
| Chrysophyllum cainito | Star apple | Sapotaceae |
| Chrysophyllum oliviforme | Satin leaf | Sapotaceae |
| Chrysopogon aciculatus * | Manienie ula, golden beardgrass | Poaceae |
| Chrysopogon zizanioides | Vetiver grass | Poaceae |
| Cibotium chamissoi * | Hapuu | Dicksoniaceae |
| Cibotium glaucum * | Hapuu pulu | Dicksoniaceae |
| Cibotium menziesii * | Hapuu ii | Dicksoniaceae |
| Cibotium sp. * | Hapuu | Dicksoniaceae |
| Cichorium endivia | Endive | Asteraceae |
| Ciclospermum leptophyllum | Fir-leaved celery | Apiaceae |
| Cinchona calisaya | Ledger quinine | Rubiaceae |
| Cinchona pubescens | Quinine | Rubiaceae |
| Cinnamomum burmannii | Padang cassia | Lauraceae |
| Cinnamomum camphora | Camphor tree | Lauraceae |
| Cinnamomum verum | Cinnamon | Lauraceae |
| Cirsium vulgare | Bull thistle, pua kala | Asteraceae |
| Cissus nodosa | Cissus | Vitaceae |
| Cissus rhombifolia | Cissus | Vitaceae |
| Cissus rotundifolia | Arabian wax cissus | Vitaceae |
| Cissus verticillata | Princess vine | Vitaceae |
| Cistus x purpureus | Orchid rock rose | Cistaceae |
| Citharexylum caudatum | Juniperberry | Verbenaceae |
| Citharexylum fruticosum | Florida fiddlewood | Verbenaceae |
| Citharexylum spinosum | Fiddlewood | Verbenaceae |
| Citrofortunella microcarpa | Calamondin, kalamansi | Rutaceae |
| Citrullus lanatus | Watermelon | Cucurbitaceae |
| Citrus aurantiifolia | Lime | Rutaceae |
| Citrus hystrix | Kaffir lime | Rutaceae |
| Citrus limon | Lemon | Rutaceae |
| Citrus maxima | Pomelo, pummelo, shaddok | Rutaceae |
| Citrus medica var. sarcodactylus | Citron, Buddha's hand | Rutaceae |
| Citrus paradisi x maxima | Hybrid grapefruit | Rutaceae |
| Citrus reticulata | Tangerine | Rutaceae |
| Citrus sinensis | Orange | Rutaceae |
| Citrus sp. | Citrus | Rutaceae |
| Citrus x paradisi | Grapefruit | Rutaceae |
| Citrus x tangelo | Tangelo | Rutaceae |
| Cladium jamaicense * | Uki, saw grass | Cyperaceae |
| Claoxylon sandwicense * | Poola | Euphorbiaceae |
| Clausena lansium | Wampi | Rutaceae |
| Clematis sp. | Clematis | Ranunculaceae |
| Cleome gynandra | Wild spider flower, spider wisp, honohina, iliohu | Brassicaceae |
| Clermontia arborescens * | Oha wai nui, oha wai, oha, haha | Campanulaceae |
| Clermontia arborescens subsp. waihiae * | Oha wai nui | Campanulaceae |
| Clermontia kakeana * | Oha wai, oha, haha | Campanulaceae |
| Clermontia micrantha * | Oha wai, haha | Campanulaceae |
| Clermontia sp. * | Oha wai, oha, haha | Campanulaceae |
| Clerodendrum aculeatum | Prickly myrtle | Lamiaceae |
| Clerodendrum buchananii var. fallax | Red clerodendrum, pagoda-flower | Lamiaceae |
| Clerodendrum bungei | Rose glorybower | Lamiaceae |
| Clerodendrum calamitosum | White butterfly | Lamiaceae |
| Clerodendrum chinense | Pikake hohono | Lamiaceae |
| Clerodendrum indicum | Clerodendrum | Lamiaceae |
| Clerodendrum inerme | Seaside clerodendrum | Lamiaceae |
| Clerodendrum macrostegium | Velvetleaf glorybower | Lamiaceae |
| Clerodendrum quadriloculare | Clerodendrum | Lamiaceae |
| Clerodendrum sp. | Clerodendrum | Lamiaceae |
| Clerodendrum splendens | Flaming glorybower | Lamiaceae |
| Clerodendrum thomsonae | Bleeding heart | Lamiaceae |
| Clerodendrum x speciosum | Java glory vine, heart vine | Lamiaceae |
| Clidemia hirta | Koster's curse | Melastomataceae |
| Clitoria ternatea | Butterfly pea | Fabaceae |
| Clusia rosea | Autograph tree | Clusiaceae |
| Clytostoma callistegioides | Clytostoma | Bignoniaceae |
| Cnidoscolus sp. | Spinach tree | Euphorbiaceae |
| Coccinia grandis | Ivy gourd, tam lung | Cucurbitaceae |
| Coccoloba diversifolia | Pigeon plum | Polygonaceae |
| Coccoloba uvifera | Sea grape | Polygonaceae |
| Coccothrinax argentea | Coccothrinax | Arecaceae |
| Coccothrinax barbadensis | Silver thatch palm | Arecaceae |
| Cocculus orbiculatus * | Huehue, hue, hueie, inalua | Menispermaceae |
| Cochlospermum vitifolium | Buttercup tree | Bixaceae |
| Cocos nucifera | Coconut palm, niu | Arecaceae |
| Codiaeum variegatum | Croton | Euphorbiaceae |
| Coffea arabica | Arabian coffee | Rubiaceae |
| Coix lachryma-jobi | Job's tears | Poaceae |
| Cola nitida | Cola nut, kola nut, cola tree | Sterculiaceae |
| Coleonema pulchellum | Breath of Heaven | Rutaceae |
| Coleonema sp. | Breath of heaven | Rutaceae |
| Colletia exserta | Barbed wire bush | Rhamnaceae |
| Colocasia esculenta | Taro, kalo | Araceae |
| Colocasia sp. | Colocasia | Araceae |
| Colubrina asiatica * | Anapanapa | Rhamnaceae |
| Colubrina oppositifolia * | Kauila, kauwila | Rhamnaceae |
| Combretum constrictum | Combretum | Combretaceae |
| Commelina benghalensis | Hairy honohono | Commelinaceae |
| Commelina diffusa | Honohono | Commelinaceae |
| Congea griffithiana | Congea, pink sandpaper vine, shower orchid | Verbenaceae |
| Congea tomentosa | Shower orchid, wooly congea | Verbenaceae |
| Coniogramme pilosa * | Loulu | Pteridaceae |
| Conocarpus erectus | Button mangrove | Combretaceae |
| Conyza bonariensis | Hairy horseweed, lani wela | Asteraceae |
| Conyza canadensis | Horseweed, lani wela | Asteraceae |
| Conyza canadensis var. canadensis | Horseweed, lani wela | Asteraceae |
| Conyza canadensis var. pusilla | Horseweed, lani wela | Asteraceae |
| Coprosma ernodeoides * | Kukaenene | Rubiaceae |
| Coprosma foliosa * | Pilo | Rubiaceae |
| Coprosma granadensis * | Makole, pilo | Rubiaceae |
| Coprosma montana * | Pilo | Rubiaceae |
| Coprosma pubens * | Pilo | Rubiaceae |
| Coprosma repens | Looking glass plant | Rubiaceae |
| Coprosma sp. ? | Pilo | Rubiaceae |
| Cordia sebestena | Kou haole, geiger tree | Boraginaceae |
| Cordia subcordata * | Kou | Boraginaceae |
| Cordyline australis | Cabbage tree | Agavaceae |
| Cordyline fruticosa | Ti leaf, ki | Agavaceae |
| Cordyline stricta | Narrow leaved palm lily | Agavaceae |
| Coreopsis lanceolata | Tickseed, kookoolau haole | Asteraceae |
| Coreopsis tinctoria | Golden tickseed | Asteraceae |
| Coriandrum sativum | Coriander, cilantro | Apiaceae |
| Coronopus didymus | Swinecress | Brassicaceae |
| Cortaderia jubata | Pampas grass | Poaceae |
| Cortaderia selloana | Pampas grass | Poaceae |
| Cortaderia sp. | Pampas grass | Poaceae |
| Corymbia calophylla | Marri, red gum | Myrtaceae |
| Corymbia citriodora | Lemon-scented gum | Myrtaceae |
| Corymbia ficifolia | Red-flowering gum | Myrtaceae |
| Corymbia gummifera | Bloodwood | Myrtaceae |
| Cosmos bipinnatus | Common cosmos, Mexican aster | Asteraceae |
| Cosmos sulphureus | Orange cosmos | Asteraceae |
| Costus comosus | Red tower ginger, spiral ginger | Costaceae |
| Costus dubius | African costus | Costaceae |
| Costus malortieanus | Spiral ginger | Costaceae |
| Costus sp. | Costus | Costaceae |
| Costus speciosus | Crape ginger, crepe ginger, malay ginger, spiral flag | Costaceae |
| Costus tapenbeckianus | Costus | Costaceae |
| Costus woodsonii | Scarlet spiral flag | Costaceae |
| Cotoneaster harrovianus | Tree cotoneaster | Rosaceae |
| Cotoneaster pannosus | Cotoneaster | Rosaceae |
| Cotula australis | Australian brass buttons | Asteraceae |
| Crassocephalum crepidioides | Crassocephalum | Asteraceae |
| Crassula mucosa | Watch chain, lizard's tail | Crassulaceae |
| Crassula ovata | Jade plant | Crassulaceae |
| Crassula pubescens subsp. radicans | Large red carpet stonecrop | Crassulaceae |
| Crepis capillaris | Hawk's beard | Asteraceae |
| Crescentia cujete | Calabash tree, gourd tree | Bignoniaceae |
| Cressa truxillensis * | Makihi, cressa | Convolvulaceae |
| Crinum angustum | Queen Emma lily | Liliaceae |
| Crinum asiaticum | Spider lily | Liliaceae |
| Crinum sp. | Spider lily | Liliaceae |
| Crocosmia x crocosmiiflora | Montbretia | Iridaceae |
| Crossandra infundibuliformis | Crossandra | Acanthaceae |
| Crotalaria assamica | Rattle pod | Fabaceae |
| Crotalaria incana | Fuzzy rattle pod | Fabaceae |
| Crotalaria juncea | Sunn hemp | Fabaceae |
| Crotalaria pallida | Smooth rattle pod | Fabaceae |
| Crotalaria pumila | Small rattle pod | Fabaceae |
| Crotalaria sp. | Rattle pod | Fabaceae |
| Crotalaria trichotoma | Curara-pea | Fabaceae |
| Croton guatemalensis | Copalchi | Euphorbiaceae |
| Croton sp. | Croton | Euphorbiaceae |
| Cryptomeria japonica | Japanese tsugi pine, Japanese-cedar | Cupressaceae |
| Cryptostegia grandiflora | Rubber vine | Asclepiadaceae |
| Cryptostegia madagascariensis | Rubber vine | Asclepiadaceae |
| Cryptostegia madagascariensis var. glabberima | Rubber vine | Asclepiadaceae |
| Cryptostegia sp. | Rubber vine | Asclepiadaceae |
| Ctenanthe oppenheimiana | Never never plant | Marantaceae |
| Cucumis dipsaceus | Teasel gourd, wild cucumber | Cucurbitaceae |
| Cucumis melo | Cantaloupe, honeydew melon | Cucurbitaceae |
| Cucumis metuliferus | Horned melon | Cucurbitaceae |
| Cucumis sativus | Bush cucumber | Cucurbitaceae |
| Cucurbita moschata | Butternut squash | Cucurbitaceae |
| Cucurbita pepo | Squash, pumpkin | Cucurbitaceae |
| Cunninghamia lanceolata | China fir | Taxodiaceae |
| Cupaniopsis anacardioides | Carrot wood | Sapindaceae |
| Cuphea carthagenensis | Tarweed, Colombian cuphea | Lythraceae |
| Cuphea hyssopifolia | False heather, Mexican heather | Lythraceae |
| Cuphea ignea | Cigar flower, firecracker plant | Lythraceae |
| Cuphea llavea | Bat faced cuphea | Lythraceae |
| Cuphea salvadorensis | Christmas cigar flower | Lythraceae |
| Cuphea subuligera | Mauve cuphea, lavender cuphea | Lythraceae |
| Cupressus macrocarpa | Monterey cypress | Cupressaceae |
| Cupressus sempervirens | Italian cypress, Mediterranean cypress | Cupressaceae |
| Cupressus sp. | Cypress | Cupressaceae |
| Curcuma australasica | Aussie plume ginger | Zingiberaceae |
| Curcuma cordata | Jewel of Thailand | Zingiberaceae |
| Curcuma longa | Turmeric, olena | Zingiberaceae |
| Cuscuta campestris | Western field dodder | Convolvulaceae |
| Cuscuta sandwichiana * | Kaunaoa | Convolvulaceae |
| Cyanea asplenifolia * | Cyanea, haha | Campanulaceae |
| Cyanea duvalliorum * | Cyanea, haha | Campanulaceae |
| Cyanea elliptica * | Cyanea, haha | Campanulaceae |
| Cyanea macrostegia subsp. macrostegia * | Cyanea, haha | Campanulaceae |
| Cyanthillium cinereum | Little ironweed | Asteraceae |
| Cycas circinalis | Sago palm | Cycadaceae |
| Cycas revoluta | Cycad | Cycadaceae |
| Cyclamen sp. | Cyclamen | Primulaceae |
| Cyclosorus interruptus * | Neke | Thelypteridaceae |
| Cycnoches cooperi x herrenhausen | Cycnoches | Orchidaceae |
| Cylindropuntia cholla | Chain link cholla | Cactaceae |
| Cymbopogon citratus | Lemon grass | Poaceae |
| Cymbopogon refractus | Barbwire grass | Poaceae |
| Cynara scolymus | Globe artichoke | Asteraceae |
| Cynodon dactylon | Bermuda grass | Poaceae |
| Cynoglossum amabile | Chinese forget me not, hound's toungue | Boraginaceae |
| Cynometra iripa | Wrinkled pod mangrove | Fabaceae |
| Cyperus alternifolius | Umbrella plant | Cyperaceae |
| Cyperus compressus | Cyperus | Cyperaceae |
| Cyperus cyperinus * | Cyperus | Cyperaceae |
| Cyperus difformis | Cyperus | Cyperaceae |
| Cyperus gracilis | McCoy grass | Cyperaceae |
| Cyperus haspan | Cyperus | Cyperaceae |
| Cyperus hillebrandii * | Cyperus | Cyperaceae |
| Cyperus hillebrandii subsp. decipiens * | Cyperus | Cyperaceae |
| Cyperus hillebrandii subsp. hillebrandii * | Cyperus | Cyperaceae |
| Cyperus hypochlorus var. hypochlorus * | Ahuawa | Cyperaceae |
| Cyperus involucratus | Ahuawa haole, puukaa haole | Cyperaceae |
| Cyperus javanicus * | Ahuawa | Cyperaceae |
| Cyperus laevigatus * | Makaloa | Cyperaceae |
| Cyperus papyrus | Papyrus sedge | Cyperaceae |
| Cyperus pennatiformis var. bryanii * | Cyperus | Cyperaceae |
| Cyperus pennatiformis var. pennatiformis * | Cyperus | Cyperaceae |
| Cyperus phleoides * | Cyperus | Cyperaceae |
| Cyperus polystachyos * | Pycreus | Cyperaceae |
| Cyperus rotundus | Purple nut sedge | Cyperaceae |
| Cyperus sp. * | Sedge | Cyperaceae |
| Cyperus trachysanthos * | Puukaa | Cyperaceae |
| Cyrtandra platyphylla * | Ilihia | Gesneriaceae |
| Cyrtandra sp. * | Cyrtandra | Gesneriaceae |
| Cyrtomium caryotideum * | Kaapeape | Dryopteridaceae |
| Cyrtostachys renda | Sealing wax palm | Arecaceae |
| Cytisus palmensis | Broom, tagasaste | Fabaceae |
| Cytisus scoparius | Scotch broom | Fabaceae |
| Dactylis glomerata | Cocksfoot | Poaceae |
| Dactyloctenium aegyptium | Beach wiregrass | Poaceae |
| Dahlia coccinea | Scarlet flowered dahlia | Asteraceae |
| Dahlia imperialis | Tree dahlia | Asteraceae |
| Dahlia sp. | Dahlia | Asteraceae |
| Dahlia x hortensis | Dahlia | Asteraceae |
| Dais cotinifolia | Pompom tree | Thymelaeaceae |
| Dalbergia sissoo | Sissoo | Fabaceae |
| Dalechampia dioscoreifolia | Purple wings, bow tie vine, butterfly vine | Euphorbiaceae |
| Dasylirion wheeleri | Desert spoon | Agavaceae |
| Datura stramonium | Jimson weed | Solanaceae |
| Daucus carota subsp. carota | Queen Anne’s-lace | Apiaceae |
| Daucus carota subsp. sativus | Carrot | Apiaceae |
| Davallia tyermannii | White rabbit's foot fern, bear's foot fern | Davalliaceae |
| Delairea odorata | Cape ivy | Asteraceae |
| Delissea kauaiensis * | Delissea | Campanulaceae |
| Delissea rytidosperma * | Delissea | Campanulaceae |
| Delonix elata | White poinciana, creamy peacock flower | Fabaceae |
| Delonix regia | Royal poinciana | Fabaceae |
| Dendranthema x grandiflorum | Garden mum, chrysanthemum, florists daisy | Asteraceae |
| Dendrobium sp. | Orchid | Orchidaceae |
| Dendrochilum magnum | Dendrochilum | Orchidaceae |
| Deparia petersenii | Deparia | Athyriaceae |
| Derris elliptica | Poison vine | Fabaceae |
| Deschampsia nubigena * | Hairgrass | Poaceae |
| Desmanthus pernambucanus | Slender mimosa | Fabaceae |
| Desmodium incanum | Spanish clover | Fabaceae |
| Desmodium intortum | Tick clover | Fabaceae |
| Desmodium sp. | Clover | Fabaceae |
| Desmodium tortuosum | Florida beggarweed | Fabaceae |
| Desmodium triflorum | Tick clover | Fabaceae |
| Dianella sandwicensis * | Ukiuki | Hemerocallidaceae |
| Dianthus armeria | Deptford pink | Caryophyllaceae |
| Dianthus barbatus | Sweet-william | Caryophyllaceae |
| Dianthus caryophyllus | Carnation | Caryophyllaceae |
| Dianthus sp. | Dianthus | Caryophyllaceae |
| Diascia sp. | Diascia, red twinspur | Scrophulariaceae |
| Dicanthelium hillebrandianum * | Dicanthelium | Poaceae |
| Dichanthium aristatum | Angleton bluestem | Poaceae |
| Dichelachne crinita | Dichelachne | Poaceae |
| Dichondra micrantha | Dichondra | Convolvulaceae |
| Dichorisandra thyrsiflora | Blue ginger | Commelinaceae |
| Dicliptera chinensis | Dicliptera, double folding wing plant | Acanthaceae |
| Dicranopteris linearis * | Uluhe | Gleicheniaceae |
| Dictyosperma album | Red palm, common princess palm, hurrican palm | Arecaceae |
| Dieffenbachia maculata | Spotted dumb cane | Araceae |
| Dieffenbachia seguine | Dumb cane, dumb plant, seguine | Araceae |
| Dieffenbachia sp. | Dumb cane | Araceae |
| Dietes bicolor | Iris | Iridaceae |
| Dietes sp. | African iris | Iridaceae |
| Digitaria abyssinica | African couchgrass, Abyssinian finger grass | Poaceae |
| Digitaria ciliaris | Henry's crab grass | Poaceae |
| Digitaria eriantha | Pangola grass | Poaceae |
| Digitaria insularis | Sourgrass | Poaceae |
| Digitaria setigera * | Kukae puaa | Poaceae |
| Digitaria sp. | Crab grass | Poaceae |
| Dillenia indica | Elephant apple, simpoh | Dilleniaceae |
| Dimocarpus longan | Longan, dragon's eye | Sapindaceae |
| Dionaea muscipula | Venus fly trap | Droseraceae |
| Dioon sp. | Dioon | Zamiaceae |
| Dioon spinulosum | Giant dioon, gum palm | Zamiaceae |
| Dioscorea alata | Uhi | Dioscoreaceae |
| Dioscorea bulbifera | Bitter yam | Dioscoreaceae |
| Dioscorea pentaphylla | Pia | Dioscoreaceae |
| Diospyros blancoi | Mabolo | Ebenaceae |
| Diospyros kaki | Oriental persimmon | Ebenaceae |
| Diospyros sandwicensis * | Lama | Ebenaceae |
| Diplazium esculentum | Paca, hoio, pohole | Athyriaceae |
| Diplazium molokaiense * | Diplazium | Athyriaceae |
| Diplazium sandwichianum * | Pohole, hoio | Athyriaceae |
| Diplopterygium pinnatum * | Uluhe lau nui | Gleicheniaceae |
| Dissotis rotundifolia | Dissotis | Melastomataceae |
| Distichlis spicata | Distichlis, saltgrass | Poaceae |
| Dodonaea viscosa * | Aalii | Sapindaceae |
| Dombeya pulchra | Silver white pear | Sterculiaceae |
| Dombeya x cayeuxii | Tropical hydrangea | Sterculiaceae |
| Doodia kunthiana * | Okupukupu | Blechnaceae |
| Doryopteris decipiens * | Iwaiwa | Pteridaceae |
| Dracaena draco | Dragon tree | Agavaceae |
| Dracaena fragrans | Fragrant dracaena | Agavaceae |
| Dracaena marginata | Money tree | Agavaceae |
| Dracaena reflexa | Dracaena | Agavaceae |
| Dracaena sanderiana | Lucky bamboo | Agavaceae |
| Dracaena sp. | Dracaena | Agavaceae |
| Drymaria cordata var. pacifica | Pilipili | Caryophyllaceae |
| Drymophloeus beguinii | Drymophloeus palm | Arecaceae |
| Dryopteris fusco-atra * | Ii, dryopteris | Pteridaceae |
| Dryopteris fusco-atra var. fusco-atra * | Ii, dryopteris | Pteridaceae |
| Dryopteris fusco-atra var. lamoureuxii * | Ii, dryopteris | Pteridaceae |
| Dryopteris glabra * | Kilau, hohiu | Pteridaceae |
| Dryopteris glabra var. hobdyana * | Kilau, hohiu | Pteridaceae |
| Dryopteris sandwicensis * | Dryopteris | Dryopteridaceae |
| Dryopteris sp. * | Dryopteris | Dryopteridaceae |
| Dryopteris wallichiana * | Laukahi | Dryopteridaceae |
| Dubautia arborea * | Kupaoa | Asteraceae |
| Dubautia laxa subsp. laxa * | Kupaoa | Asteraceae |
| Dubautia linearis * | Kupaoa | Asteraceae |
| Dubautia menziesii * | Kupaoa | Asteraceae |
| Dubautia plantaginea subsp. plantaginea * | Kupaoa | Asteraceae |
| Dubautia scabra * | Kupaoa | Asteraceae |
| Dubautia scabra x menziesii * | Kupaoa hybrid | Asteraceae |
| Dubautia sp. * | Kupaoa | Asteraceae |
| Duranta erecta | Golden dewdrop | Verbenaceae |
| Durio zibethinus | Durian | Malvaceae |
| Dypsis ambositrae | Ambositra palm | Arecaceae |
| Dyschoriste hygrophyloides | Bridal flower | Acanthaceae |
| Dyssodia tenuiloba | Lemon drop | Asteraceae |
| Echeveria sp. | Echeveria, hen and chickens | Crassulaceae |
| Echinacea purpurea | Purple cone flower, echinacea | Asteraceae |
| Echinocactus grusonii | Golden barrel cactus | Cactaceae |
| Echinochloa colona | Jungle-rice | Poaceae |
| Echinochloa crus-galli | Barnyard grass | Poaceae |
| Echinopsis pachanoi | San Pedro cactus | Cactaceae |
| Echium sp. | Echium | Boraginaceae |
| Eclipta prostrata | False daisy | Asteraceae |
| Ehretia acuminata | Kodo wood | Boraginaceae |
| Ehrharta calycina | Perennial veldt grass | Poaceae |
| Ehrharta erecta | Panic veldt grass, ehrharta, Lamarck's ehrharta | Poaceae |
| Ehrharta stipoides | Meadow rice grass | Poaceae |
| Eichhornia crassipes | Water hyacinth | Pontederiaceae |
| Elaeocarpus grandis | Blue-marble tree | Elaeocarpaceae |
| Elaeodendron orientale | False olive | Celastraceae |
| Elaphoglossum aemulum * | Laukahi nunui | Elaphoglossaceae |
| Elaphoglossum paleaceum * | Makue | Elaphoglossaceae |
| Elaphoglossum sp. * | Elaphoglossum | Elaphoglossaceae |
| Elaphoglossum wawrae * | Laukahi | Elaphoglossaceae |
| Eleocharis calva * | Spikerush | Cyperaceae |
| Eleocharis radicans | Spikerush | Cyperaceae |
| Eleocharis sp. | Spikerush | Cyperaceae |
| Elephantopus mollis | Soft elephants foot | Asteraceae |
| Eleusine indica | Wire grass | Poaceae |
| Embelia pacifica * | Kilioe | Myrsinaceae |
| Emex spinosa | Spiny emex, devil's thorn, prickly doc | Polygonaceae |
| Emilia fosbergii | Pualele | Asteraceae |
| Emilia sp. | Pualele | Asteraceae |
| Encelia farinosa | Brittle brush | Asteraceae |
| Encephalartos sp. | Encephalartos | Zamiaceae |
| Ensete ventricosum | Abyssinian banana | Musaceae |
| Enterolobium cyclocarpum | Elephant's earpod | Fabaceae |
| Epidendrum x obrienianum | Butterfly orchid | Orchidaceae |
| Epilobium billardierianum subsp. cinereum | Willow herb | Onagraceae |
| Epilobium ciliatum | Fringed willow herb | Onagraceae |
| Epiphyllum sp. | Orchid cactus, leaf cactus | Cactaceae |
| Epipremnum pinnatum | Golden pothos | Araceae |
| Equisetum hyemale | Horsetail, scouring rush | Equisetaceae |
| Eragrostis amabilis | Love grass | Poaceae |
| Eragrostis atropioides * | Eragrostis | Poaceae |
| Eragrostis brownei | Sheepgrass | Poaceae |
| Eragrostis cilianensis | Stink grass | Poaceae |
| Eragrostis curvula | Eragrostis | Poaceae |
| Eragrostis deflexa * | Eragrostis | Poaceae |
| Eragrostis grandis * | Eragrostis | Poaceae |
| Eragrostis paupera * | Dwarf eragrostis | Poaceae |
| Eragrostis pectinacea | Carolina love grass | Poaceae |
| Eragrostis sp. * | Eragrostis | Poaceae |
| Eragrostis superba | Wilmann love grass | Poaceae |
| Eragrostis unioloides | Eragrostis | Poaceae |
| Eragrostis variabilis * | Emoloa, kawelu | Poaceae |
| Eranthemum pulchellum | Blue eranthemum, blue sage | Acanthaceae |
| Erechtites valerianifolia | Fireweed | Asteraceae |
| Erica baccans | Berry flower heath | Ericaceae |
| Erica lusitanica | Spanish heath | Ericaceae |
| Erica sp. | Unknown erica | Ericaceae |
| Erigeron bellioides | Fleabane | Asteraceae |
| Erigeron karvinskianus | Daisy fleabane | Asteraceae |
| Eriobotrya japonica | Loquat, pipa, Japanese plum | Rosaceae |
| Eriochloa procera | Tropical cupgrass | Poaceae |
| Erodium cicutarium | Alfilaria, pin clover | Geraniaceae |
| Eruca vesicaria subsp. sativa | Arugula, rocket | Brassicaceae |
| Eryngium foetidum | Thorny coriander, stinkweed | Apiaceae |
| Erythrina berteroana | Coralbean | Fabaceae |
| Erythrina corallodendrum | Jamaica coral tree | Fabaceae |
| Erythrina crista-galli | Cock's spur coral tree | Fabaceae |
| Erythrina herbacea | Coral bean | Fabaceae |
| Erythrina latissima | Broad leaved coral tree | Fabaceae |
| Erythrina sandwicensis * | Wiliwili | Fabaceae |
| Erythrina sp. | Erythrina | Fabaceae |
| Erythrina variegata | Indian coral tree | Fabaceae |
| Erythrina x bidwillii | Indian coral tree | Fabaceae |
| Escallonia rubra var. macrantha | Red claws, escallonia | Saxifragaceae |
| Eschscholzia californica | California poppy | Papaveraceae |
| Eucalyptus amygdalina | Black peppermint | Myrtaceae |
| Eucalyptus botryoides | Bangalay | Myrtaceae |
| Eucalyptus camaldulensis | River red gum, Murray red gum | Myrtaceae |
| Eucalyptus cladocalyx | Sugar gum | Myrtaceae |
| Eucalyptus crebra | Narrow-leaved ironbark | Myrtaceae |
| Eucalyptus deglupta | Rainbow eucalyptus | Myrtaceae |
| Eucalyptus globulus | Blue gum | Myrtaceae |
| Eucalyptus grandis | Flooded gum, red gum | Myrtaceae |
| Eucalyptus lehmanni | Bushy yate | Myrtaceae |
| Eucalyptus obliqua | Messmate stringybark | Myrtaceae |
| Eucalyptus paniculata | Gray ironbark | Myrtaceae |
| Eucalyptus pilularis | Blackbutt | Myrtaceae |
| Eucalyptus robusta | Swamp mahogany | Myrtaceae |
| Eucalyptus rudis | Desert gum | Myrtaceae |
| Eucalyptus sideroxylon | Red ironbark | Myrtaceae |
| Eucalyptus sp. | Eucalyptus | Myrtaceae |
| Eucalyptus tereticornis | Forest red gum | Myrtaceae |
| Euchiton sphaericus | Euchiton | Asteraceae |
| Eugenia brasiliensis | Spanish cherry, Brazilian plum, grumichama | Myrtaceae |
| Eugenia sp. | Eugenia | Myrtaceae |
| Eugenia uniflora | Surinam cherry, pitanga | Myrtaceae |
| Euonymus japonica | Spindle tree, golden euonymus | Celastraceae |
| Euphorbia ammak | African candelabra | Euphorbiaceae |
| Euphorbia cotinifolia | Red spurge | Euphorbiaceae |
| Euphorbia cyathophora | Wild poinsettia | Euphorbiaceae |
| Euphorbia fulgens | Scarlet plume | Euphorbiaceae |
| Euphorbia heterophylla | Kaliko | Euphorbiaceae |
| Euphorbia lactea | Milk striped euphorbia, mottled candle stick tree | Euphorbiaceae |
| Euphorbia leucocephala | White-laced euphorbia, Christ child | Euphorbiaceae |
| Euphorbia milii | Crown of thorns, christ's thorn | Euphorbiaceae |
| Euphorbia neriifolia | Indian spurge tree, dedge euphorbia | Euphorbiaceae |
| Euphorbia peplus | Petty spurge | Euphorbiaceae |
| Euphorbia pulcherrima | Pointsettia, christmas flower | Euphorbiaceae |
| Euphorbia sp. | Diamond frost | Euphorbiaceae |
| Euphorbia tirucalli | Milkbush, pencil tree | Euphorbiaceae |
| Eurya sandwicensis * | Anini, wanini | Theaceae |
| Euryops pectinatus | Yellow bush daisy, euryops | Asteraceae |
| Eustachys petraea | Pinewoods fingergrass | Poaceae |
| Eustoma grandiflorum | Prairie gentian, lisianthus, Texas bluebell | Gentianaceae |
| Evolvulus glomeratus subsp. grandiflorus | Blue daze | Convolvulaceae |
| Fagraea berteroana | Pua kenikeni | Loganiaceae |
| Falcataria moluccana | Moluccan albizia | Fabaceae |
| Fallopia convolvulus | Black bindweed, wild buckwheat | Polygonaceae |
| Farfugium japonicum | Farfugium, tsuwa-buki | Asteraceae |
| Ferocactus cylindraceus | Barrel cactus | Cactaceae |
| Festuca arundinacea | Festuca | Poaceae |
| Festuca rubra | Red fescue | Poaceae |
| Ficus aurea | Florida strangler fig | Moraceae |
| Ficus benghalensis | Indian banyan tree | Moraceae |
| Ficus benjamina | Weeping fig | Moraceae |
| Ficus carica | Edible fig | Moraceae |
| Ficus deltoidea | Mistletoe fig, cherry banyan | Moraceae |
| Ficus elastica | Rubber tree | Moraceae |
| Ficus lyrata | Fiddle leaf fig | Moraceae |
| Ficus macrophylla | Moreton Bay fig | Moraceae |
| Ficus microcarpa | Chinese banyan tree | Moraceae |
| Ficus neriifolia | Narrow leaf fig, willow leaf fig | Moraceae |
| Ficus nota | Tibig | Moraceae |
| Ficus platypoda | Australian rock fig | Moraceae |
| Ficus pseudopalma | Philippine fig | Moraceae |
| Ficus pumila | Creeping fig | Moraceae |
| Ficus religiosa | Bo tree | Moraceae |
| Ficus sp. | Ficus | Moraceae |
| Ficus triangularis | Triangle fig | Moraceae |
| Filicium decipiens | Fern tree | Sapindaceae |
| Fimbristylis cymosa * | Mauu akiaki, button sedge | Cyperaceae |
| Fimbristylis dichotoma * | Fimbristylis | Cyperaceae |
| Flaveria trinervia | Flaveria | Asteraceae |
| Flemingia strobilifera | Wild hops | Fabaceae |
| Flindersia brayleyana | Queensland maple | Rutaceae |
| Flueggea neowawraea * | Mehamehame | Phyllanthaceae |
| Flueggea virosa | Chinese waterberry | Phyllanthaceae |
| Foeniculum vulgare | Fennel | Apiaceae |
| Fortunella sp. | Kumquat | Rutaceae |
| Fortunella x crassifolia | Meiwa kumquat | Rutaceae |
| Fragaria chiloensis subsp. sandwicensis * | Ohelo papa | Rosaceae |
| Fragaria vesca | European strawberry | Rosaceae |
| Fragaria x ananassa | Cultivated strawberry | Rosaceae |
| Fraxinus uhdei | Tropical ash | Oleaceae |
| Fraxinus velutina | Velvet ash | Oleaceae |
| Freesia x hybrida | Common freesia, florist's freesia | Iridaceae |
| Freycinetia arborea * | Ieie | Pandanaceae |
| Fuchsia boliviana | Fuchsia | Onagraceae |
| Fuchsia magellanica | Fuchsia, earring flower | Onagraceae |
| Fuchsia sp. | Fuchsia | Onagraceae |
| Fuchsia x hybrida | Fuchsia | Onagraceae |
| Fumaria officinalis | Drug fumitory | Fumariaceae |
| Furcraea foetida | Mauritius hemp | Agavaceae |
| Gahnia beecheyi * | Uki, forest sawsedge | Cyperaceae |
| Gaillardia pulchella | Gaillardia, melekula wai kahuli, waikahuli | Asteraceae |
| Galium divaricatum | Bedstraw | Rubiaceae |
| Galphimia gracilis | Galphimia, spray of gold, thryallis | Malpighiaceae |
| Gamochaeta purpurea | Spoonleaf purple everlasting | Asteraceae |
| Garcinia madruno | Lemon drop mangosteen | Clusiaceae |
| Garcinia mangostana | Mangosteen | Clusiaceae |
| Garcinia xanthochymus | False mangosteen, gourka | Clusiaceae |
| Gardenia augusta | Gardenia, cape jasmine, trailing gardenia | Rubiaceae |
| Gardenia brighamii * | Gardenia | Rubiaceae |
| Gardenia carinata | Golden gardenia | Rubiaceae |
| Gardenia sp. | Gardenia | Rubiaceae |
| Gardenia taitensis | Tahitian gardenia, tiare | Rubiaceae |
| Gasteria glomerata | Ox tongue | Asphodelaceae |
| Gaura lindheimeri | Whirling butterflies, white gaura | Onagraceae |
| Gazania rigens var. leucolaena | Trailing gazania | Asteraceae |
| Gazania rigens var. rigens | Pied gazania, treasure flower | Asteraceae |
| Gelsemium sempervirens | Carolina jessamine, yellow jessamine | Loganiaceae |
| Genista monspessulana | French broom | Fabaceae |
| Geogenanthus sp. | Geogenanthus | Commelinaceae |
| Geranium arboreum * | Nohoanu | Geraniaceae |
| Geranium cuneatum subsp. cuneatum * | Nohoanu | Geraniaceae |
| Geranium cuneatum subsp. tridens * | Nohoanu | Geraniaceae |
| Geranium dissectum | Cranesbill | Geraniaceae |
| Geranium homeanum | Cranesbill | Geraniaceae |
| Geranium multiflorum * | Nohoanu | Geraniaceae |
| Gigantochloa atroviolacea | Tropical black bamboo, Java black | Poaceae |
| Gigantochloa sp. | Malay dwarf bamboo | Poaceae |
| Ginkgo biloba | Ginkgo, maidenhair tree | Ginkgoaceae |
| Gladiolus delenii | Gladiola | Iridaceae |
| Gladiolus sp. | Gladiola | Iridaceae |
| Gliricidia sepium | Gliricidia, madre de cacao | Fabaceae |
| Globba winitii | Dacing ladies ginger, ruby queen | Zingiberaceae |
| Gloriosa superba | Climbing lily, glory lily, flame lily | Liliaceae |
| Gloxinia sp. | Hardy gloxinia | Gesneriaceae |
| Glycine max | Soybean, soya bean, edamame | Fabaceae |
| Gmelina arborea | Gumhar, bulang, Indian bulang | Verbenaceae |
| Gmelina sp. | Gmelina | Verbenaceae |
| Gnaphalium sandwicensium * | Enaena, puheu | Asteraceae |
| Gnaphalium sandwicensium var. molokaiense * | Enaena, puheu | Asteraceae |
| Gnaphalium sandwicensium var. sandwicensium * | Enaena, puheu | Asteraceae |
| Gnaphalium sp. | Gnaphalium | Asteraceae |
| Gnetum gnemon | Melinjo, belinjo, bago | Gnetaceae |
| Gomphrena globosa | Globe amaranth, bozu, lehua moa loa, lehua pepa | Amaranthaceae |
| Gossypium barbadense | Sea island cotton, creole cotton, pulupulu haole | Malvaceae |
| Gossypium hirsutum | Upland cotton | Malvaceae |
| Gossypium sp. | Cotton | Malvaceae |
| Gossypium tomentosum * | Mao, Hawaiian cotton | Malvaceae |
| Gouania hillebrandii * | Gouania | Rhamnaceae |
| Grammitis hookeri * | Makue lau lii | Grammitidaceae |
| Graptophyllum pictum | Caricature plant | Acanthaceae |
| Grevillea banksii | Kahili flower | Proteaceae |
| Grevillea banksii x bipinnatifida | Grevillea 'Robyn Gordon' | Proteaceae |
| Grevillea juniperina | Protea | Proteaceae |
| Grevillea lanigera | Wooly grevillea, spider flower | Proteaceae |
| Grevillea longifolia x caleyi | Grevillea 'Ivanhoe' | Proteaceae |
| Grevillea robusta | Silky oak, silver oak, silkoak | Proteaceae |
| Grevillea rosmarinifolia | Grevillea | Proteaceae |
| Grevillea wilsonii | Grevillea | Proteaceae |
| Grewia occidentalis | Four corners | Tiliaceae |
| Guaiacum officinale | Lignum vitae | Zygophyllaceae |
| Gunnera petaloidea * | Apeape | Gunneraceae |
| Guzmania lingulata | Scarlet star, orange star | Bromeliaceae |
| Guzmania sp. | Guzmani bormeliad | Bromeliaceae |
| Gynura nepalensis | Cholesterol spinach | Asteraceae |
| Gynura sp. | Purple passion vine, purple velvet plant | Asteraceae |
| Habranthus robustus | Rain lily, zephyr lily, fairy lily | Liliaceae |
| Hamelia patens | Scarlet bush, firebush | Rubiaceae |
| Harpullia pendula | Australian tulipwood | Sapindaceae |
| Haworthia attenuata | Haworthia | Asphodelaceae |
| Hedera algeriensis | Algerian ivy | Araliaceae |
| Hedera helix | English ivy | Araliaceae |
| Hedychium coccineum | Red ginger lily, orange bottlebrush ginger | Zingiberaceae |
| Hedychium coronarium | White ginger | Zingiberaceae |
| Hedychium coronarium x gardnerianum | White x kahili hybrid ginger | Zingiberaceae |
| Hedychium flavescens | Yellow ginger | Zingiberaceae |
| Hedychium gardnerianum | Kahili ginger | Zingiberaceae |
| Hedychium sp. | Ginger | Zingiberaceae |
| Hedychium x elizabeth | Elizabeth ginger | Zingiberaceae |
| Hedyotis callitrichoides | Hedyotis | Rubiaceae |
| Hedyotis corymbosa | Hedyotis | Rubiaceae |
| Helianthus annuus | Sunflower | Asteraceae |
| Helichrysum petiolare | Licorice plant, immortelle | Asteraceae |
| Helichrysum thianschanicum | Silver spike, icicle | Asteraceae |
| Heliconia bihai | Lobster claw | Heliconiaceae |
| Heliconia caribaea | Lobster claw | Heliconiaceae |
| Heliconia collinsiana | Red hanging heliconia | Heliconiaceae |
| Heliconia humilis | Lobster claw | Heliconiaceae |
| Heliconia indica | Striped blood banana, pink striped heliconia | Heliconiaceae |
| Heliconia latispatha | Golden lobster claw | Heliconiaceae |
| Heliconia lingulata | Heliconia | Heliconiaceae |
| Heliconia orthotricha | Pink eden | Heliconiaceae |
| Heliconia psittacorum | Parakeet heliconia, rhizomatosa heliconia | Heliconiaceae |
| Heliconia psittacorum x spathocircinatum | Heliconia | Heliconiaceae |
| Heliconia rostrata | Parrot's beak heliconia | Heliconiaceae |
| Heliconia sp. | Heliconia | Heliconiaceae |
| Heliconia stricta | Firebird heliconia, dwarf Jamaican heliconia | Heliconiaceae |
| Heliotropium amplexicaule | Heliotrope | Boraginaceae |
| Heliotropium anomalum var. argenteum * | Hinahina, hinahina ku kahakai, nohonohopuuone, pohinahina | Boraginaceae |
| Heliotropium arborescens | Heliotrope | Boraginaceae |
| Heliotropium curassavicum * | Nena, seaside heliotrope, kipukai, lau poopoohina | Boraginaceae |
| Heliotropium procumbens | Heliotrope | Boraginaceae |
| Hemarthria altissima | Hemarthria | Poaceae |
| Hemerocallis sp. | Daylily | Liliaceae |
| Hemigraphis alternata | Red flame ivy, metal-leaf, red-flame | Acanthaceae |
| Hemigraphis repanda | Narrow leaf hemigraphis | Acanthaceae |
| Heritiera littoralis | Looking glass tree | Sterculiaceae |
| Hernandia moerenhoutiana | Mountain lantern tree | Hernandiaceae |
| Hernandia nymphaeifolia | Jack in the box tree, bing a bing | Hernandiaceae |
| Hesperocnide sandwicensis * | Hesperocnide | Urticaceae |
| Heterocentron subtriplinervium | Pearl flower | Melastomataceae |
| Heteropogon contortus * | Pili, pili grass | Poaceae |
| Heterotheca grandiflora | Telegraph weed | Asteraceae |
| Hibiscus acetosella | Red-leaf hibiscus, false roselle, African rose mallow | Malvaceae |
| Hibiscus arnottianus subsp. arnottianus * | Kokio keokeo, hau hele, kokio kea | Malvaceae |
| Hibiscus arnottianus subsp. immaculatus * | Kokio keokeo, hau hele, kokio kea | Malvaceae |
| Hibiscus brackenridgei subsp. brackenridgei * | Mao hau hele | Malvaceae |
| Hibiscus campylosiphon var. glabrescens | Lautan | Malvaceae |
| Hibiscus clayi * | Hawaiian red hibiscus, hibiscus | Malvaceae |
| Hibiscus elatus | Cuba bast, mahoe | Malvaceae |
| Hibiscus furcellatus * | Hawaiian pink hibiscus, akiohala, akiahala, hau hele, hau hele wai | Malvaceae |
| Hibiscus kokio subsp. kokio * | Hawaiian red hibiscus, kokio, kokio ula, kokio ulaula, maku | Malvaceae |
| Hibiscus kokio subsp. saintjohnianus * | Hawaiian orange hibiscus, kokio, kokio ula, kokio ulaula, maku | Malvaceae |
| Hibiscus makinoi | Okinawan hibiscus | Malvaceae |
| Hibiscus moscheutos | Musk mallow, swamp rose mallow | Malvaceae |
| Hibiscus mutabilis | Cotton rose, Confederate rose, changeable rose mallow | Malvaceae |
| Hibiscus ovalifolius | Rock's hibiscus | Malvaceae |
| Hibiscus rosa-sinensis | Hibiscus | Malvaceae |
| Hibiscus schizopetalus | Fringed rosemallow, pagoda flower | Malvaceae |
| Hibiscus sp. | Hibiscus | Malvaceae |
| Hibiscus tiliaceus * | Hau | Malvaceae |
| Hibiscus waimeae * | Hawaiian white hibiscus, kokio kea, kokio keokeo | Malvaceae |
| Hibiscus waimeae subsp. hannerae * | Miniature Hawaiian white hibiscus, kokio keokeo | Malvaceae |
| Hillebrandia sandwicensis * | Pua maka nui, akaakaawa | Begoniaceae |
| Hippeastrum sp. | Lily | Amaryllidaceae |
| Hippeastrum striatum | Barbados lily, orange lily | Amaryllidaceae |
| Hiptage benghalensis | Hiptage | Malpighiaceae |
| Holcus lanatus | Yorkshire fog | Poaceae |
| Holmskioldia sanguinea | Chinese hat plant, cup and saucer plant, parasol flower | Verbenaceae |
| Homalanthus populifolius | Bleeding-heart, Queensland poplar | Euphorbiaceae |
| Homalocladium platycladum | Tapeworm plant, ribbon bush, centipede plant | Polygonaceae |
| Homalomena sp. | Homalomena | Araceae |
| Horsfieldia costulata | Horsfieldia | Myristicaceae |
| Hosta sp. | Hosta | Liliaceae |
| Howea forsteriana | Kentia palm, sentry palm, thatch palm | Arecaceae |
| Hoya australis | Wax flower | Apocynaceae |
| Hoya multiflora | Shooting star | Apocynaceae |
| Hoya sp. | Hoya, wax plant | Apocynaceae |
| Hunnemannia fumariifolia | Mexican tulip poppy | Papaveraceae |
| Huperzia phyllantha * | Huperzia | Lycopodiaceae |
| Huperzia sp. * | Huperzia | Lycopodiaceae |
| Hydrangea macrophylla subsp. macrophylla | Hydrangea | Hydrangeaceae |
| Hydrangea paniculata | Peegee hydrangea, panicle hydrangea, limelight | Hydrangeaceae |
| Hydrocotyle bowlesioides | Marsh pennywort | Araliaceae |
| Hydrocotyle sibthorpioides | Lawn marsh pennywort | Apiaceae |
| Hydrocotyle verticillata | Marsh pennywort, pohe, laukahi, pohepohe | Araliaceae |
| Hylocereus undatus | Night-blooming cereus, paniniokapunahoa, papipi pua, dragon fruit, red pitaya | Cactaceae |
| Hymenaea courbaril | Jatoba, West Indian locust tree, stinky toe tree | Fabaceae |
| Hymenocallis festalis | Peruvian daffodil | Liliaceae |
| Hymenocallis sp. | Spider lily | Liliaceae |
| Hyophorbe lagenicaulis | Bottle palm | Arecaceae |
| Hyophorbe verschaffeltii | Spindle palm | Arecaceae |
| Hyparrhenia dregeana | Silky thatching grass | Poaceae |
| Hyparrhenia rufa | Thatching grass | Poaceae |
| Hyparrhenia sp. | Thatching grass | Poaceae |
| Hypericum canariense | Canary Island's St. John's wort | Clusiaceae |
| Hypericum mutilum | St. John's wort | Clusiaceae |
| Hypericum perforatum | St. John's wort | Clusiaceae |
| Hypochoeris radicata | Hairy cat's ear, gosmore | Asteraceae |
| Hypoestes phyllostachya | Polka dot plant, freckle face | Acanthaceae |
| Hyptis pectinata | Comb hyptis | Lamiaceae |
| Hyptis verticillata | John Charles weed | Lamiaceae |
| Iberis umbellata | Globe candytuft | Brassicaceae |
| Ilex anomala * | Kawau, aiea | Aquifoliaceae |
| Ilex aquifolium | English or European holly | Aquifoliaceae |
| Ilex cassine | Dahoon | Aquifoliaceae |
| Ilex sp. | Holly | Aquifoliaceae |
| Ilex vomitoria | Yaupon | Aquifoliaceae |
| Impatiens hawkeri | New Guinea impatiens | Balsaminaceae |
| Impatiens sodenii | Impatiens, Oliver's snapweed | Balsaminaceae |
| Impatiens sp. | Impatiens | Balsaminaceae |
| Impatiens walleriana | Impatiens, busy Lizzy, patient Lucy | Balsaminaceae |
| Indigofera hendecaphylla | Creeping indigo | Fabaceae |
| Indigofera suffruticosa | Upright indigo | Fabaceae |
| Inga feuillei | Ice cream bean | Fabaceae |
| Iochroma cyanea | Iochroma | Solanaceae |
| Ipomoea alba | Moon flower | Convolvulaceae |
| Ipomoea aquatica | Water morning glory, water spinach | Convolvulaceae |
| Ipomoea batatas | Sweet potato | Convolvulaceae |
| Ipomoea cairica | Ivy-leaved morning glory, koali ai | Convolvulaceae |
| Ipomoea carnea subsp. fistulosa | Morning glory | Convolvulaceae |
| Ipomoea horsfalliae | Prince's vine, Kuhio vine, Horsfall's morning glory | Convolvulaceae |
| Ipomoea imperati * | Hunakai | Convolvulaceae |
| Ipomoea indica * | Koali awa | Convolvulaceae |
| Ipomoea obscura | Ipomoea | Convolvulaceae |
| Ipomoea ochracea | Ipomoea | Convolvulaceae |
| Ipomoea pes-caprae subsp. brasiliensis * | Pohuehue, beach morning glory | Convolvulaceae |
| Ipomoea triloba | Little bell | Convolvulaceae |
| Ipomoea tuboides * | Hunakai | Convolvulaceae |
| Ipomoea violacea | Beach moonflower | Convolvulaceae |
| Iresine herbstii | Beefsteak plant, bloodleaf, chicken gizzard | Amaranthaceae |
| Iris x hollandica | Dutch iris | Iridaceae |
| Ischaemum byrone * | Ischaemum | Poaceae |
| Isopogon formosus | Rose cone flower | Proteaceae |
| Isotoma fluviatilis | Blue star creeper, swamp isotoma | Campanulaceae |
| Ixora casei | Ixora | Rubiaceae |
| Ixora finlaysonia | Siamese white ixora | Rubiaceae |
| Ixora sp. | Ixora | Rubiaceae |
| Jacaranda mimosifolia | Jacaranda | Bignoniaceae |
| Jacquemontia ovalifolia subsp. sandwicensis * | Pau o Hiiaka | Convolvulaceae |
| Jacquemontia pentantha | Jacquemontia | Convolvulaceae |
| Jasminum fluminense | Jasmine | Oleaceae |
| Jasminum grandiflorum | Spanish jasmine | Oleaceae |
| Jasminum laurifolium f. nitidum | Confederate jasmine, angel wing jasmine | Oleaceae |
| Jasminum mesnyi | Primrose jasmine, Chinese / Japanese jasmine | Oleaceae |
| Jasminum multiflorum | Downy jasmine | Oleaceae |
| Jasminum multipartitum | Starry jasmine | Oleaceae |
| Jasminum nitidum | Shining jasmine | Oleaceae |
| Jasminum polyanthum | Pink jasmine, winter jasmine, climbing jasmine | Oleaceae |
| Jasminum sambac | Arabian jasmine, pikake, rose pikake | Oleaceae |
| Jasminum simplicifolium | Wax jasmine | Oleaceae |
| Jatropha curcas | Physic nut, Barbados nut | Euphorbiaceae |
| Jatropha gossypifolia | Bellyache bush, cotton leaved jatropha | Euphorbiaceae |
| Jatropha integerrima | Peregrina | Euphorbiaceae |
| Jatropha multifida | Coral plant | Euphorbiaceae |
| Jatropha podagrica | Buddha belly plant, gout plant | Euphorbiaceae |
| Juglans regia | Walnut | Juglandaceae |
| Juglans sp. | Walnut | Juglandaceae |
| Juncus bufonius | Toad rush | Juncaceae |
| Juncus effusus | Soft rush, goza plant, Japanese mat rush, bog rush | Juncaceae |
| Juncus planifolius | Juncus | Juncaceae |
| Juncus polyanthemos | Juncus | Juncaceae |
| Juncus sp. | Unknown juncus | Juncaceae |
| Juniperus bermudiana | Bermuda juniper | Cupressaceae |
| Juniperus chinensis | Chinese juniper | Cupressaceae |
| Juniperus horizontalis | Creeping juniper | Cupressaceae |
| Juniperus procumbens | Japanese shore juniper, blue Pacific juniper | Cupressaceae |
| Juniperus sabina | Arcacia juniper | Cupressaceae |
| Juniperus sp. | Juniper | Cupressaceae |
| Juniperus virginiana | Skyrocket juniper, Eastern red cedar | Cupressaceae |
| Justicia aurea | Justicia | Acanthaceae |
| Justicia betonica | White shrimp plant, squirrel's tail | Acanthaceae |
| Justicia brandegeana | Red shrimp plant | Acanthaceae |
| Justicia carnea | Plume flower | Acanthaceae |
| Justicia ecbolia | Blue justicia | Acanthaceae |
| Justicia spicigera | Justicia | Acanthaceae |
| Kadua acuminata * | Au, pilo | Rubiaceae |
| Kadua affinis * | Manono | Rubiaceae |
| Kadua cordata * | Hedyotis | Rubiaceae |
| Kadua coriacea * | Kioele | Rubiaceae |
| Kadua hillebrandii * | Manono | Rubiaceae |
| Kadua littoralis * | Hedyotis | Rubiaceae |
| Kadua sp. * | Kadua | Rubiaceae |
| Kalanchoe beharensis | Velvet leaf, felt bush, Napoleon's hat | Crassulaceae |
| Kalanchoe blossfeldiana | Flaming Katy, kalanchoe | Crassulaceae |
| Kalanchoe crenata | Never die | Crassulaceae |
| Kalanchoe daigremontianum | Mother of millions, devil's backbone | Crassulaceae |
| Kalanchoe fedtschenkoi | Lavender scallops | Crassulaceae |
| Kalanchoe pinnata | Air plant | Crassulaceae |
| Kalanchoe thyrsiflora | Flap jack, dog tongue plant | Crassulaceae |
| Kalanchoe tomentosa | Panda plant, plush plant, pussy ears | Crassulaceae |
| Kalanchoe tubiflora | Chandelier plant | Crassulaceae |
| Kigelia africana | Sausage tree | Bignoniaceae |
| Kniphofia sp. | Red hot poker | Asphodelaceae |
| Koelreuteria elegans subsp. formosana | Golden-rain tree | Sapindaceae |
| Kokia cookei * | Kokia | Malvaceae |
| Kokia drynarioides * | Kokia | Malvaceae |
| Korthalsella complanata * | Hulumoa | Viscaceae |
| Korthalsella sp. * | Hulumoa | Viscaceae |
| Kunzea baxteri | Scarlet kunzea | Myrtaceae |
| Kunzea sp. | White teatree | Myrtaceae |
| Kyllinga brevifolia | Green kyllinga | Cyperaceae |
| Kyllinga nemoralis | White kyllinga | Cyperaceae |
| Lablab purpureus | Hyacinth-bean | Fabaceae |
| Labordia tinifolia var. tinifolia * | Labordia | Loganiaceae |
| Labordia triflora * | Labordia, kamakahala | Loganiaceae |
| Laccospadix australasica | Atherton palm | Arecaceae |
| Lactuca sativa | Lettuce, prickly lettuce | Asteraceae |
| Lagenaria siceraria | Bottle gourd, white flowered gourd, long squash | Cucurbitaceae |
| Lagerstroemia archeriana | Queensland crepe myrtle | Lythraceae |
| Lagerstroemia indica | Crape myrtle | Lythraceae |
| Lagerstroemia sp. | Crape myrtle | Lythraceae |
| Lagerstroemia speciosa | Giant crape myrtle, queens crape myrtle | Lythraceae |
| Laguncularia racemosa | White mangrove | Combretaceae |
| Lampranthus roseus | Mini ice plant | Aizoaceae |
| Lampranthus sp. | Ice plant | Aizoaceae |
| Lantana camara | Lantana | Verbenaceae |
| Lantana montevidensis | Trailing lantana | Verbenaceae |
| Lapsana communis | Nipplewort | Asteraceae |
| Latania loddigesii | Blue latan palm | Arecaceae |
| Latania sp. | Latan palm | Arecaceae |
| Lathyrus latifolius | Perrenial or everlasting pea | Fabaceae |
| Lathyrus odoratus | Sweet pea | Fabaceae |
| Laurus nobilis | Bay leaf tree, bay laurel | Lauraceae |
| Lavandula angustifolia | Lavender | Lamiaceae |
| Lavandula dentata | French lavender | Lamiaceae |
| Lavandula multifida | Fern leaf lavender | Lamiaceae |
| Lavandula pinnata | Fern leaf lavender, jagged lavender | Lamiaceae |
| Lavandula sp. | Lavender | Lamiaceae |
| Lavandula stoechas | French lavender, Spanish lavender | Lamiaceae |
| Lavandula x intermedia | Lavandin | Lamiaceae |
| Lavatera maritima | Tree mallow | Malvaceae |
| Leea guineensis | Leea, amamali, West Indian holly | Leeaceae |
| Leea philippinensis | Leea | Leeaceae |
| Leonotis nepetifolia | Lion's ear | Lamiaceae |
| Leonurus sibiricus | Siberian motherwort | Lamiaceae |
| Lepechinia hastata * | Pitcher sage, pakaha | Lamiaceae |
| Lepidium bidentatum var. o-waihiense * | Anaunau, anounou, kunana, naunau | Brassicaceae |
| Lepidium bonariense | Lepidium | Brassicaceae |
| Lepidium densiflorum | Lepidium | Brassicaceae |
| Lepidium oblongum | Peppergrass | Brassicaceae |
| Lepidium sativum | Garden cress | Brassicaceae |
| Lepidium sp. | Peppergrass | Brassicaceae |
| Lepidium virginicum | Peppergrass | Brassicaceae |
| Lepisanthes rubiginosa | Lepisanthes | Sapindaceae |
| Lepisorus thunbergianus * | Pakahakaha | Polypodiaceae |
| Leptecophylla tameiameiae * | Pukiawe, aalii mahu, kawau, pukeawe | Ericaceae |
| Leptinella gruveri | Miniature brass buttons | Asteraceae |
| Leptochloa fusca subsp. uninervia | Sprangletop | Poaceae |
| Leptospermum laevigatum | Australian tea tree | Myrtaceae |
| Leptospermum morrisonii | Tea tree | Myrtaceae |
| Leptospermum petersonii | Australian tea tree | Myrtaceae |
| Leptospermum polygalifolium | Tea tree | Myrtaceae |
| Leptospermum rotundifolium | Round-leaved tea tree | Myrtaceae |
| Leptospermum scoparium | New Zealand tea tree | Myrtaceae |
| Lepturus repens * | Lepturus | Poaceae |
| Leucadendron argenteum | Silver tree protea | Proteaceae |
| Leucadendron sp. | Protea | Proteaceae |
| Leucaena diversifolia | Upland koa haole | Fabaceae |
| Leucaena leucocephala | Koa haole, lead tree | Fabaceae |
| Leucaena sp. | Koa haole, lead tree | Fabaceae |
| Leucaena x spontanea | Hybrid haole koa | Fabaceae |
| Leucanthemum maximum | Shasta daisy | Asteraceae |
| Leucanthemum vulgare | Ox-eye daisy, field daisy, white daisy, pua Pake | Asteraceae |
| Leucanthemum x superbum | Shasta daisy | Asteraceae |
| Leucophyllum frutescens | Texas ranger | Scrophulariaceae |
| Leucospermum conocarpodendron | Tree pincushion | Proteaceae |
| Leucospermum mundii | Langerberg pincushion | Proteaceae |
| Leucospermum reflexum | Rocket | Proteaceae |
| Leucospermum sp. | Pincushion | Proteaceae |
| Licuala grandis | Licuala | Arecaceae |
| Licuala sp. | Licuala palm | Arecaceae |
| Ligustrum japonicum | Wax leaf privet | Oleaceae |
| Ligustrum japonicum var. rotundifolium | Wax leaf privet | Oleaceae |
| Ligustrum lucidum | Tree privet | Oleaceae |
| Ligustrum ovalifolium | California privet | Oleaceae |
| Ligustrum sinense | Chinese privet | Oleaceae |
| Ligustrum sp. | Privet | Oleaceae |
| Lilium sp. | Easter lily | Liliaceae |
| Limonium arborescens | Tree limonium | Plumbaginaceae |
| Limonium sp. | Statice | Plumbaginaceae |
| Linaria canadensis var. texana | Blue toad flax | Plantaginaceae |
| Linaria dalmatica | Broadleaf toadflax | Plantaginaceae |
| Lindernia crustacea | Lindernia | Plantaginaceae |
| Linum bienne | Pale flax | Linaceae |
| Linum grandiflorum | Flowering flax | Linaceae |
| Linum sp. | Flax | Linaceae |
| Liparis hawaiensis * | Awapuhiakanaloa | Orchidaceae |
| Lipochaeta heterophylla * | Nehe | Asteraceae |
| Lipochaeta lobata * | Nehe | Asteraceae |
| Lipochaeta rockii * | Nehe | Asteraceae |
| Lipochaeta sp. * | Nehe | Asteraceae |
| Lipochaeta succulenta * | Nehe | Asteraceae |
| Lipochaeta tenuifolia * | Nehe | Asteraceae |
| Liquidambar styraciflua | Red gum, sweet gum | Hamamelidaceae |
| Liriope muscari | Lilyturf | Liliaceae |
| Liriope sp. | Lilyturf | Liliaceae |
| Liriope spicata | Creeping lilyturf | Liliaceae |
| Litchi chinensis subsp. chinensis | Litchi, lychee | Sapindaceae |
| Livistona chinensis | Chinese fan palm | Arecaceae |
| Lobelia boninensis | Bonin lobelia | Campanulaceae |
| Lobelia gloria-montis * | Glory of the mountain lobelia | Campanulaceae |
| Lobelia grayana * | Lobelia | Campanulaceae |
| Lobelia laxifolia | Mexican cardinal flower, torch lobelia | Campanulaceae |
| Lobularia maritima | Sweet alyssum | Brassicaceae |
| Lolium perenne | Perennial ryegrass | Poaceae |
| Lolium sp. | Rye grass | Poaceae |
| Lonicera hildebrandiana | Large honeysuckle, giant Burmese honeysuckle | Caprifoliaceae |
| Lonicera japonica | Japanese honeysuckle, honekakala | Caprifoliaceae |
| Lophomyrtus sp. | Lophomyrtus | Myrtaceae |
| Lophostemon confertus | Brush box, vinegar tree | Myrtaceae |
| Loropetalum chinense | Razzle berry | Hamamelidaceae |
| Lotus subbiflorus | Lotus | Fabaceae |
| Lotus uliginosus | Lotus | Fabaceae |
| Ludwigia octovalvis | Primrose willow | Onagraceae |
| Ludwigia palustris | Marsh purslane | Onagraceae |
| Ludwigia peruviana | Primrose willow | Onagraceae |
| Luffa acutangula | Luffa, Chinese squash, ridged gourd | Cucurbitaceae |
| Lupinus sp. | Lupine | Fabaceae |
| Luzula hawaiiensis * | Wood rush | Juncaceae |
| Lycianthes rantonnei | Blue potato bush | Solanaceae |
| Lycium sandwicense * | Ohelo kai | Solanaceae |
| Lycopodiella cernua * | Wawaeiole | Lycopodiaceae |
| Lygodium japonicum | Japanese climbing fern | Schizaeaceae |
| Lysiloma latisiliquum | False tamarind | Fabaceae |
| Lysimachia mauritiana * | Lysimachia | Myrsinaceae |
| Lysimachia maxima * | Lysimachia | Myrsinaceae |
| Lysimachia procumbens | Golden globe, gold coin | Myrsinaceae |
| Lysimachia remyi * | Lysimachia | Myrsinaceae |
| Lysimachia sp. * | Lysimachia | Myrsinaceae |
| Lythrum maritimum * | Lythrum | Lythraceae |
| Macadamia integrifolia | Macadamia nut | Proteaceae |
| Macaranga mappa | Bingabing | Euphorbiaceae |
| Macaranga tanarius | Parasol leaf tree | Euphorbiaceae |
| Macfadyena unguis-cati | Cat's claw climber | Bignoniaceae |
| Machaerina angustifolia * | Uki | Cyperaceae |
| Machaerina mariscoides subsp. meyenii * | Uki | Cyperaceae |
| Maclura pomifera | Osage orange | Moraceae |
| Macropiper puberulum | Hairy piper | Piperaceae |
| Macroptilium atropurpureum | Macroptilium | Fabaceae |
| Macroptilium lathyroides | Cow pea | Fabaceae |
| Magnolia grandiflora | Southern magnolia | Magnoliaceae |
| Majidea zanquebarica | Mgambo, velvet pearls | Sapindaceae |
| Malpighia coccigera | Miniature holly, Singapore holly | Malpighiaceae |
| Malpighia emarginata | Acerola, Barbados cherry | Malpighiaceae |
| Malus pumila | Domestic apple | Rosaceae |
| Malus sp. | Apple | Rosaceae |
| Malva neglecta | Common mallow | Malvaceae |
| Malva parviflora | Cheese weed | Malvaceae |
| Malvastrum americanum | Indian Valley false mallow | Malvaceae |
| Malvastrum coromandelianum subsp. coromandelianum | False mallow | Malvaceae |
| Malvaviscus arboreus | Erect turk's cap, firecracker hibiscus | Malvaceae |
| Malvaviscus penduliflorus | Turk's cap | Malvaceae |
| Mammea americana | Mammee apple | Clusiaceae |
| Mammillaria elongata | Golden stars, lady fingers | Cactaceae |
| Mandevilla boliviensis | Mandevilla | Apocynaceae |
| Mandevilla funiformis | Yellow mandevilla | Apocynaceae |
| Mandevilla sp. | Mandevilla | Apocynaceae |
| Mandevilla splendens | Red riding hood dipladenia | Apocynaceae |
| Mandevilla x amabilis | Mandevilla | Apocynaceae |
| Mangifera indica | Mango, manako, meneke | Anacardiaceae |
| Manihot esculenta | Cassava | Euphorbiaceae |
| Manihot glaziovii | Ceara rubber tree | Euphorbiaceae |
| Manilkara dissecta | Pani | Sapotaceae |
| Manilkara zapota | Sapodilla, chikoo, chico | Sapotaceae |
| Mansoa hymenaea | Garlic vine | Bignoniaceae |
| Maranta sp. | Prayers plant | Marantaceae |
| Marattia douglasii * | Pala, kapua ilio | Marattiaceae |
| Marsdenia floribunda | Stephanotis, Madagascar jasmine, pua male | Asclepiadaceae |
| Marsilea villosa * | Ihiihi | Marsileaceae |
| Maurandya antirrhiniflora | Roving sailor | Plantaginaceae |
| Maurandya barclaiana | Maurandya | Plantaginaceae |
| Mecodium recurvum * | Ohia ku | Hymenophyllaceae |
| Medicago lupulina | Black medic | Fabaceae |
| Medicago polymorpha | Bur clover | Fabaceae |
| Medicago sativa | Alfalfa | Fabaceae |
| Medicago sp. | Unknown medicago | Fabaceae |
| Medinilla cumingii | Medinilla | Melastomataceae |
| Medinilla magnifica | Medinilla | Melastomataceae |
| Medinilla scortechinii | Orange medinilla | Melastomataceae |
| Medinilla venosa | Medinilla | Melastomataceae |
| Megaskepasma erythrochlamys | Brazilian red cloak | Acanthaceae |
| Melaleuca bracteata | River tea tree, snow in summer | Myrtaceae |
| Melaleuca quinquenervia | Paperbark, punk tree | Myrtaceae |
| Melaleuca sp. | Melaleuca | Myrtaceae |
| Melaleuca styphelioides | Prickly paperbark | Myrtaceae |
| Melanthera integrifolia * | Nehe | Asteraceae |
| Melanthera lavarum * | Nehe | Asteraceae |
| Melastoma sanguineum | Fox-tongued melastoma | Melastomataceae |
| Melastoma septemnervium | Asian melastome | Melastomataceae |
| Melia azedarach | Chinaberry | Meliaceae |
| Melicoccus bijugatus | Spanish lime, genip, mamoncillo | Sapindaceae |
| Melicope adscendens * | Melicope | Rutaceae |
| Melicope clusiifolia * | Kakaemoa | Rutaceae |
| Melicope knudsenii * | Melicope | Rutaceae |
| Melicope latifolia | Melicope | Rutaceae |
| Melicope sp. * | Melicope | Rutaceae |
| Melilotus alba | White sweetclover | Fabaceae |
| Melilotus indica | Sweet clover | Fabaceae |
| Melinis minutiflora | Molasses grass | Poaceae |
| Melinis repens | Natal red top | Poaceae |
| Melissa officinalis | Lemon balm | Lamiaceae |
| Melochia umbellata | Melochia | Malvaceae |
| Mentha suaveolens | Pineapple mint | Lamiaceae |
| Mentha x piperita | Peppermint | Lamiaceae |
| Mentha x spicata | Spearmint | Lamiaceae |
| Merremia aegyptia | Hairy merremia | Convolvulaceae |
| Merremia tuberosa | Woodrose | Convolvulaceae |
| Metrosideros kermadecensis | Ohia haole, pohutukawa | Myrtaceae |
| Metrosideros polymorpha * | Ohia, lehua, ohia lehua | Myrtaceae |
| Metrosideros sp. * | Ohia | Myrtaceae |
| Michelia champaca | Fragrant Himalayan champaca | Magnoliaceae |
| Michelia figo | Banana shrub | Magnoliaceae |
| Michelia x alba | White champak, pak-lan, fragrant Himalayan champaca | Magnoliaceae |
| Miconia calvescens | Miconia | Melastomataceae |
| Microlepia strigosa * | Palapalai | Dennstaedtiaceae |
| Microsorum musifolium | Crocodile fern, crocodyllus | Polypodiaceae |
| Mikania scandens | Climbing hempvine | Asteraceae |
| Milletia pinnata | Pongamia | Fabaceae |
| Mimosa pudica | Sensitive plant, sleeping grass | Fabaceae |
| Mimusops elengi | Bullet wood | Sapotaceae |
| Mirabilis jalapa | Four-oclock | Nyctaginaceae |
| Mitracarpus hirtus | Mitracarpus | Rubiaceae |
| Modiola caroliniana | Modiola | Malvaceae |
| Momordica charantia | Bitter melon | Cucurbitaceae |
| Monstera deliciosa | Swiss-cheese plant | Araceae |
| Monstera friedrichsthalii | Swiss cheese plant, window leaf, split leaf philodendron | Araceae |
| Montanoa hibiscifolia | Tree daisy | Asteraceae |
| Morella cerifera | Wax myrtle | Myricaceae |
| Morella faya | Firetree | Myricaceae |
| Morelotia gahniiformis * | Gahnia | Cyperaceae |
| Morinda citrifolia | Noni | Rubiaceae |
| Moringa oleifera | Kalamungay, drumstick tree | Moringaceae |
| Morus alba | White mulberry | Moraceae |
| Mucuna gigantea * | Sea bean | Fabaceae |
| Mucuna nigricans | Black jade vine | Fabaceae |
| Mucuna novoguineensis | Scarlet jade vine | Fabaceae |
| Mucuna urens | Cow-itch plant | Fabaceae |
| Muehlenbeckia complexa | Creeping wire vine | Polygonaceae |
| Munroidendron racemosum * | Munroidendron | Araliaceae |
| Murraya paniculata | Mock orange | Rutaceae |
| Musa sp. | Banana | Musaceae |
| Musa velutina | Pink fruited banana, self-peeling banana | Musaceae |
| Mussaenda erythrophylla | Ashanti blood | Rubiaceae |
| Mussaenda frondosa | Flag bush | Rubiaceae |
| Mussaenda sp. | Mussaenda | Rubiaceae |
| Myoporum sandwicense * | Naio | Myoporaceae |
| Myrciaria cauliflora | Jaboticaba, Brazilian grape tree | Myrtaceae |
| Myriophyllum aquaticum | Parrot feather, watermilfoil | Haloragaceae |
| Myrsine floridana | Myrsine | Myrtaceae |
| Myrsine lanaiensis * | Kolea | Myrsinaceae |
| Myrsine lessertiana * | Kolea lau nui | Myrsinaceae |
| Myrsine sandwicensis * | Kolea lau lii | Myrsinaceae |
| Myrtus communis | Myrtle | Myrtaceae |
| Nama sandwicensis * | Nama | Boraginaceae |
| Nandina domestica | Heavenly bamboo | Berberidaceae |
| Narcissus sp. | Narcissus | Liliaceae |
| Narcissus tazetta | Chinese sacred lily, bunch-flowered narcissus | Liliaceae |
| Nasturtium officinale | Watercress | Brassicaceae |
| Nastus elatus | Nastus bamboo | Poaceae |
| Nematanthus wettsteinii | Goldfish plant, candy corn plant | Gesneriaceae |
| Nemesia sp. | Nemesia | Scrophulariaceae |
| Neodypsis decaryi | Madagascar three-sided palm, triangle palm | Arecaceae |
| Neodypsis lastelliana | Teddy bear palm, red neck palm | Arecaceae |
| Neomarica sp. | Walking iris, apostle plant | Iridaceae |
| Neonotonia wightii | Glycine | Fabaceae |
| Nepenthes sp. | Pitcher plant | Nepenthaceae |
| Nepeta cataria | Catnip | Lamiaceae |
| Nephelium lappaceum | Rambutan | Sapindaceae |
| Nephrolepis cordifolia * | Narrow sword fern, kupukupu lau lii | Nephrolepidaceae |
| Nephrolepis exaltata | Sword fern, kupukupu | Nephrolepidaceae |
| Nephrolepis falcata | Fishtail fern | Nephrolepidaceae |
| Nephrolepis multiflora | Asian sword fern | Nephrolepidaceae |
| Nephrolepis sp. ? | Sword fern | Nephrolepidaceae |
| Nerium oleander | Oleander | Apocynaceae |
| Nesoluma polynesicum * | Keahi | Sapotaceae |
| Nestegis sandwicensis * | Olopua | Oleaceae |
| Nicandra physalodes | Apple of Peru | Solanaceae |
| Nicotiana alata | Jasmine tobacco | Solanaceae |
| Nicotiana glauca | Tree tobacco | Solanaceae |
| Nicotiana tabacum | Tobacco | Solanaceae |
| Nigella damascena | Love in a mist | Ranunculaceae |
| Nigella sp. | Love in a minst | Ranunculaceae |
| Nolina recurvata | Pony tail palm, beaucarnea, bottle ponytail | Agavaceae |
| Norantea guianensis subsp. guianensis | Red hot poker | Marcgraviaceae |
| Noronhia emarginata | Madagascar olive | Oleaceae |
| Nothocestrum latifolium * | Aiea | Solanaceae |
| Nothoperanema rubiginosa * | Nothoperanema | Dryopteridaceae |
| Nototrichium humile * | Kului | Amaranthaceae |
| Nototrichium sandwicense * | Kului | Amaranthaceae |
| Nuphar luteum | Spatter-dock, cow-lily | Nymphaeaceae |
| Nymphaea sp. | Water lily | Nymphaeaceae |
| Ochna integerrima | Vietnamese Mickey Mouse plant | Ochnaceae |
| Ochna mossambicensis | African Mickey Mouse plant | Ochnaceae |
| Ochna serrulata | Mickey Mouse plant | Ochnaceae |
| Ochna sp. | Mickey Mouse plant | Ochnaceae |
| Ochna thomasiana | Mickey Mouse plant | Ochnaceae |
| Ochroma pyramidale | Balsa, corkwood | Bombacaceae |
| Ochrosia haleakalae * | Holei | Apocynaceae |
| Ocimum americanum | Lemon basil, hoary basil | Lamiaceae |
| Ocimum basilicum | Sweet basil | Lamiaceae |
| Ocimum basilicum var. purpureum | Purple basil | Lamiaceae |
| Ocimum basilicum var. thyrsiflorum | Thai basil, ornamental basil | Lamiaceae |
| Ocimum gratissimum | Wild basil | Lamiaceae |
| Ocimum tenuiflorum | Holy basil | Lamiaceae |
| Odontonema cuspidatum | Firespike | Acanthaceae |
| Oenothera biennis | Primrose | Onagraceae |
| Oenothera kunthiana | Primrose | Onagraceae |
| Oenothera laciniata | Cutleaved evening primrose | Onagraceae |
| Oenothera sp. | Primrose | Onagraceae |
| Oenothera stricta subsp. stricta | Evening primrose | Onagraceae |
| Olea europaea subsp. cuspidata | African olive | Oleaceae |
| Olea europaea subsp. europaea | European olive | Oleaceae |
| Oncosperma tigillarium | Nibung palm, gendiwung | Arecaceae |
| Oncospermum tigillarium | Gendiwung, nibong | Arecaceae |
| Ophioderma pendulum subsp. falcatum * | Puapua moa, laukahi, adder's tongue | Ophioglossaceae |
| Ophioglossum polyphyllum * | Pololei | Ophioglossaceae |
| Ophiopogon japonicus | Dwarf lilyturf, mondo grass | Liliaceae |
| Ophiopogon planiscapus | Black leaved mondo grass | Liliaceae |
| Oplismenus hirtellus | Basketgrass | Poaceae |
| Opuntia cochenillifera | Cactus | Cactaceae |
| Opuntia ficus-indica | Panini, papipi, prickly pear cactus | Cactaceae |
| Oreobolus furcatus * | Oreobolus | Cyperaceae |
| Origanum majorana | Sweet marjoram, Italian oregano | Lamiaceae |
| Origanum vulgare | Oregano, wild marjoram, Greek oregano | Lamiaceae |
| Origanum vulgare subsp. hirtum | Winter marjoram, Greek oregano | Lamiaceae |
| Origanum x majoricum | Italian oregano | Lamiaceae |
| Orthosiphon aristatus | Cat's whiskers, Java tea | Lamiaceae |
| Oryza sp. | Rice | Poaceae |
| Osmanthus fragrans | Fragrant olive | Oleaceae |
| Osmoxylon lineare | Miagos bush | Araliaceae |
| Osteomeles anthyllidifolia * | Ulei, Hawaiian rose | Rosaceae |
| Osteospermum fruticosum | Trailing African daisy | Asteraceae |
| Osteospermum sp. | Sunny Henry | Asteraceae |
| Otacanthus caeruleus | Brazilian snapdragon | Scrophulariaceae |
| Otatea acuminata subsp. aztecorum | Mexican weeping bamboo | Poaceae |
| Oxalis corniculata | Yellow wood sorrel | Oxalidaceae |
| Oxalis debilis var. corymbosa | Pink wood sorrel | Oxalidaceae |
| Oxalis sp. | Charmed wine oxalis | Oxalidaceae |
| Pachira aquatica | Guiana chestnut | Bombacaceae |
| Pachycereus marginatus | Central Mexico organ pipe | Cactaceae |
| Pachycereus schottii | Senita cactus, whisker cactus | Cactaceae |
| Pachystachys lutea | Yellow shrimp plant | Acanthaceae |
| Paederia foetida | Maile pilau | Rubiaceae |
| Palafoxia callosa | Palafoxia | Asteraceae |
| Pandanus amaryllis | Pandanus | Pandanaceae |
| Pandanus sp. | Pandanus | Pandanaceae |
| Pandanus tectorius * | Hala, screwpine | Pandanaceae |
| Pandanus utilis | Screwpine | Pandanaceae |
| Pandorea jasminoides | Bower plant, pink jasmine | Bignoniaceae |
| Panicum antidotale | Giant panic grass | Poaceae |
| Panicum fauriei * | Panicum | Poaceae |
| Panicum fauriei var. carteri * | Panicum | Poaceae |
| Panicum fauriei var. fauriei * | Panicum | Poaceae |
| Panicum fauriei var. latius * | Panicum | Poaceae |
| Panicum konaense * | Panicum | Poaceae |
| Panicum maximum | Guinea grass | Poaceae |
| Panicum pellitum * | Panicum | Poaceae |
| Panicum repens | Torpedo grass | Poaceae |
| Panicum sp. * | Panicum | Poaceae |
| Panicum tenuifolium * | Mountain pili | Poaceae |
| Panicum torridum * | Konakona | Poaceae |
| Panicum xerophilum * | Konakona | Poaceae |
| Papilionanthe sp. | Miss Joaquim | Orchidaceae |
| Paraserianthes lophantha subsp. montana | Mountain Albizia | Fabaceae |
| Parentucellia viscosa | Yellow glandweed | Orobanchaceae |
| Parkia timoriana | Tree beans, yongchak, parkia | Fabaceae |
| Parkinsonia aculeata | Jerusalem thorn | Fabaceae |
| Parthenium hysterophorus | False ragweed, Santa Maria | Asteraceae |
| Paspalum conjugatum | Hilo grass | Poaceae |
| Paspalum dilatatum | Dallis grass | Poaceae |
| Paspalum fimbriatum | Fimbriate paspalum, Panama paspalum, Columbia grass | Poaceae |
| Paspalum notatum | Bahia grass | Poaceae |
| Paspalum scrobiculatum * | Ricegrass | Poaceae |
| Paspalum setaceum | Paspalum | Poaceae |
| Paspalum sp. | Paspalum | Poaceae |
| Paspalum urvillei | Vasey grass | Poaceae |
| Paspalum vaginatum | Seashore paspalum | Poaceae |
| Passiflora coccinea | Passion fruit | Passifloraceae |
| Passiflora edulis | Passion fruit | Passifloraceae |
| Passiflora foetida | Love in a mist | Passifloraceae |
| Passiflora laurifolia | Yellow water lemon | Passifloraceae |
| Passiflora ligularis | Sweet granadilla | Passifloraceae |
| Passiflora quadrangularis | Giant granadilla | Passifloraceae |
| Passiflora sp. | Passiflora | Passifloraceae |
| Passiflora suberosa | Huehue haole | Passifloraceae |
| Passiflora subpeltata | White passion flower | Passifloraceae |
| Passiflora tarminiana | Banana poka | Passifloraceae |
| Passiflora vitifolia | Grape-leaved passion fruit | Passifloraceae |
| Passiflora x violacea | Blue passion flower | Passifloraceae |
| Paulownia tomentosa | Empress tree, princess tree | Scrophulariaceae |
| Pedilanthus bracteatus | Slipper plant, candelilla | Euphorbiaceae |
| Pedilanthus tithymaloides | Slipper flower | Euphorbiaceae |
| Pelargonium capitatum | Rose scented geranium, atom snowflake geranium | Geraniaceae |
| Pelargonium graveolens | Citrosa geranium, rose geranium, citronella | Geraniaceae |
| Pelargonium sp. | Geranium | Geraniaceae |
| Pelargonium x hortorum | Common geranium, fish geranium | Geraniaceae |
| Pellaea ternifolia * | Kalamoho | Pteridaceae |
| Peltophorum pterocarpum | Yellow poinciana | Fabaceae |
| Pennisetum clandestinum | Kikuyu grass | Poaceae |
| Pennisetum macrostachyum var. atropurpureum | Purple fountain grass | Poaceae |
| Pennisetum polystachion | Blue buffel grass | Poaceae |
| Pennisetum purpureum | Cane grass, elephant grass, napier grass | Poaceae |
| Pennisetum setaceum | Fountain grass | Poaceae |
| Pentalinon luteum | Wild allamanda, yellow dipladenia | Apocynaceae |
| Pentas lanceolata | Pentas | Rubiaceae |
| Peperomia blanda * | Alaala wai nui | Piperaceae |
| Peperomia cookiana * | Alaalawainui | Piperaceae |
| Peperomia sp. * | Alaala wai nui | Piperaceae |
| Peperomia tetraphylla * | Alaala wai nui | Piperaceae |
| Pereskia grandifolia var. grandifolia | Pereskia, rose cactus | Cactaceae |
| Perilla frutescens | Shiso, perilla | Lamiaceae |
| Perityle emoryi | Rock daisy | Asteraceae |
| Perrottetia sandwicensis * | Olomea | Celastraceae |
| Persea americana | Avocado, alligator pear | Lauraceae |
| Persicaria capitata | Polygonum | Polygonaceae |
| Persicaria punctata | Water smartweed | Polygonaceae |
| Petrea volubilis | Sandpaper vine, queen's wreath | Verbenaceae |
| Petrorhagia velutina | Childing pink | Caryophyllaceae |
| Petroselinum crispum | Parsley | Apiaceae |
| Petunia x hybrida | Petunia | Solanaceae |
| Peucedanum sandwicense * | Makou | Apiaceae |
| Phaeomeria magnifica | Torch ginger | Zingiberaceae |
| Phaius tankarvilleae | Chinese ground orchid | Orchidaceae |
| Phalaris aquatica | Bulbous canary grass | Poaceae |
| Phaseolus lunatus | Butter bean, lima bean, sieva bean | Fabaceae |
| Phaseolus vulgaris | Bush bean, garden bean, pole bean | Fabaceae |
| Philadelphus karwinskianus | Philadelphus | Hydrangeaceae |
| Philadelphus x virginalis | Minnesota snow flake, virginal mock orange | Hydrangeaceae |
| Philodendron bipinnatifidum | Tree philodendron | Araceae |
| Philodendron cordatum | Heart leaf philodendron | Araceae |
| Philodendron sp. | Philodendron | Araceae |
| Phlebodium aureum | Lauae haole | Polypodiaceae |
| Phleum pratense | Phleum | Poaceae |
| Phoenix canariensis | Canary island date palm | Arecaceae |
| Phoenix dactylifera | Date palm | Arecaceae |
| Phoenix roebelenii | Dwarf date palm, pygmy date palm | Arecaceae |
| Phoenix sp. | Date palm | Arecaceae |
| Phormium tenax | New Zealand flax | Hemerocallidaceae |
| Photinia davidiana | Photinia | Rosaceae |
| Phragmites australis | Common reed | Poaceae |
| Phyla nodiflora | Phyla | Verbenaceae |
| Phyllanthus acidus | Otaheite gooseberry | Phyllanthaceae |
| Phyllanthus debilis | Niruri, phyllanthus | Phyllanthaceae |
| Phyllanthus distichus * | Pamakani mahu, pamakani | Phyllanthaceae |
| Phyllanthus sp. | Phyllanthus | Phyllanthaceae |
| Phyllanthus tenellus | Phyllanthus | Phyllanthaceae |
| Phyllostachys nigra | Black bamboo | Poaceae |
| Phymatosorus grossus | Lauae, maile scented fern | Polypodiaceae |
| Physalis angulata | Husk tomato | Solanaceae |
| Physalis peruviana | Poha, Cape gooseberry | Solanaceae |
| Phytolacca octandra | Pokeweed | Phytolaccaceae |
| Picea abies | Norway spruce | Pinaceae |
| Pilea microphylla | Artillery plant | Urticaceae |
| Pilea nummulariifolia | Creeping Charlie | Urticaceae |
| Pilosocereus pachycladus | Pilocereus | Cactaceae |
| Pimenta dioica | All spice | Myrtaceae |
| Pimenta racemosa | Bay rum tree | Myrtaceae |
| Pinanga kuhlii | Pinanga palm, ivory cane palm | Arecaceae |
| Pinus caribaea var. hondurensis | Caribean pine | Pinaceae |
| Pinus coulteri | Coulter pine | Pinaceae |
| Pinus elliottii | Slash pine | Pinaceae |
| Pinus patula | Mexican weeping pine | Pinaceae |
| Pinus pinaster | Pine tree | Pinaceae |
| Pinus ponderosa | Ponderosa pine | Pinaceae |
| Pinus radiata | Monterey pine | Pinaceae |
| Pinus sp. | Pine | Pinaceae |
| Pinus taeda | Loblolly pine | Pinaceae |
| Pinus thunbergiana | Japanese black pine | Pinaceae |
| Piper aduncum | Spiked pepper | Piperaceae |
| Piper auritum | False awa | Piperaceae |
| Piper gualiameanse | Piper | Piperaceae |
| Piper lolot | Piper | Piperaceae |
| Piper methysticum | Awa, kawa | Piperaceae |
| Piper nigrum | Black pepper | Piperaceae |
| Piper postelsianum | Piper | Piperaceae |
| Piper sarmentosum | Thai piper | Piperaceae |
| Piper sp. | Piper | Piperaceae |
| Pipturus albidus * | Mamaki | Urticaceae |
| Pisonia brunoniana * | Papala kepau | Nyctaginaceae |
| Pisonia grandis * | Pisonia | Nyctaginaceae |
| Pisonia sp. * | Papala kepau | Nyctaginaceae |
| Pisonia umbellifera * | Papala kepau | Nyctaginaceae |
| Pistia stratiotes | Water lettuce | Araceae |
| Pisum sativum | Garden pea | Fabaceae |
| Pisum sativum var. macrocarpum | Sugar snap pea, snow pea | Fabaceae |
| Pithecellobium alexandri | Pithecellobium | Fabaceae |
| Pithecellobium dulce | Manila tamarind, opiuma | Fabaceae |
| Pittosporum confertiflorum * | Hoawa | Pittosporaceae |
| Pittosporum crassifolium | Karo | Pittosporaceae |
| Pittosporum glabrum * | Hoawa | Pittosporaceae |
| Pittosporum sp. | Pittosporum | Pittosporaceae |
| Pittosporum tenuifolium | Kohuhu | Pittosporaceae |
| Pittosporum tetraspermum | Pittosporum | Pittosporaceae |
| Pittosporum tobira | Pittosporum | Pittosporaceae |
| Pittosporum undulatum | Victorian box | Pittosporaceae |
| Pittosporum viridiflorum | Cape pittosporum | Pittosporaceae |
| Pityrogramma austroamericana | Golden fern | Pteridaceae |
| Plantago lanceolata | Narrow-leaved plantain | Plantaginaceae |
| Plantago major | Broad-leaved or common plantain | Plantaginaceae |
| Plantago pachyphylla * | Laukahi kuahiwi, manene | Plantaginaceae |
| Platanus sp. | Sycamore | Platanaceae |
| Platycerium bifurcatum | Staghorn fern, elkhorn fern | Polypodiaceae |
| Platycerium sp. | Staghorn fern, elkhorn fern | Polypodiaceae |
| Platycladus orientalis | Chinese arborvitae | Cupressaceae |
| Platymiscium stipulare | Platymiscium | Fabaceae |
| Plectranthus amboinicus | False oregano, Greek oregano, Cuban oregano | Lamiaceae |
| Plectranthus fruticosus | Mint leaf | Lamiaceae |
| Plectranthus parviflorus * | Alaala wai nui wahine | Lamiaceae |
| Plectranthus sp. | Plectranthus | Lamiaceae |
| Plectranthus verticillatus | Plectranthus | Lamiaceae |
| Pleomele aurea * | Halapepe | Ruscaceae |
| Pleomele auwahiensis * | Halapepe | Ruscaceae |
| Pleomele fernaldii * | Halapepe | Ruscaceae |
| Pluchea carolinensis | Sourbush | Asteraceae |
| Pluchea indica | Indian fleabane | Asteraceae |
| Pluchea x fosbergii | Marsh fleabane | Asteraceae |
| Plumbago auriculata | Cape plumbago, leadwort | Plumbaginaceae |
| Plumbago zeylanica * | Iliee | Plumbaginaceae |
| Plumeria obtusa | Plumeria, frangipani | Apocynaceae |
| Plumeria pudica | Wild plumeria, white frangipani | Apocynaceae |
| Plumeria rubra | Plumeria, frangipani | Apocynaceae |
| Pneumatopteris sandwicensis * | Hoio kula | Thelypteridaceae |
| Poa annua | Annual bluegrass | Poaceae |
| Poa pratensis | Kentucky bluegrass | Poaceae |
| Podocarpus gracilior | Yellowwood, fern pine | Podocarpaceae |
| Podocarpus macrophyllus | Yew pine, Japanese yew | Podocarpaceae |
| Podocarpus sp. | Podocarpus | Podocarpaceae |
| Podranea ricasoliana | Podranea | Bignoniaceae |
| Pogostemon cablin | Patchouli | Lamiaceae |
| Polianthes tuberosa | Tuberose | Agavaceae |
| Polyalthia longifolia var. pendula | Mast tree | Annonaceae |
| Polycarpon tetraphyllum | Polycarpon | Caryophyllaceae |
| Polygala paniculata | Milkwort, root beer plant | Polygalaceae |
| Polygala virgata | Purple broom | Polygalaceae |
| Polygala x dalmaisiana | Milkwort, dalmasiana, sweet pea shrub | Polygalaceae |
| Polygonum aviculare | Polygonum | Polygonaceae |
| Polypodium formosanum | Caterpillar fern, grub fern | Polypodiaceae |
| Polypodium pellucidum * | Ae, polypodium | Polypodiaceae |
| Polypogon interruptus | Ditch polypogon | Poaceae |
| Polypogon sp. | Polypogon | Poaceae |
| Polyscias filicifolia | Panax, fern-leaf aralia, angelica | Araliaceae |
| Polyscias fruticosa | Panax, parsley panax, ming aralia | Araliaceae |
| Polyscias guilfoylei | Panax | Araliaceae |
| Polyscias scutellaria | Panax, round leaved panax | Araliaceae |
| Polystichum haleakalense * | Polystichum | Dryopteridaceae |
| Polystichum hillebrandii * | Kaupu, papaoi, polystichum | Dryopteridaceae |
| Polystichum sp. * | Polystichum | Dryopteridaceae |
| Pometia pinnata | Fijian longan, island lychee, langsir | Sapindaceae |
| Pontederia cordata | Pickerel weed | Pontederiaceae |
| Pontederia cordata var. lancifolia | Pickerel weed | Pontederiaceae |
| Poranopsis paniculata | Poranopsis | Convolvulaceae |
| Portulaca grandiflora | Moss rose | Portulacaceae |
| Portulaca lutea * | Ihi | Portulacaceae |
| Portulaca molokiniensis * | Ihi | Portulacaceae |
| Portulaca oleracea | Pigweed | Portulacaceae |
| Portulaca pilosa | Pigweed | Portulacaceae |
| Portulaca sp. | Portulaca | Portulacaceae |
| Portulaca spnovum * | Ihi | Portulacaceae |
| Portulaca umbraticola | Wingpod purslane cv. 'wildfire' | Portulacaceae |
| Portulaca villosa * | Ihi | Portulacaceae |
| Portulacaria afra | Miniature jade plant, purslane tree | Portulacaceae |
| Posoqueria latifolia | Tree jasmine | Rubiaceae |
| Pouteria caimito | Abiu fruit | Sapotaceae |
| Pouteria campechiana | Eggfruit, canistel | Sapotaceae |
| Pouteria sandwicensis * | Alaa | Sapotaceae |
| Pritchardia affinis * | Loulu | Arecaceae |
| Pritchardia arecina * | Loulu | Arecaceae |
| Pritchardia glabrata * | Loulu | Arecaceae |
| Pritchardia hillebrandii * | Loulu lelo | Arecaceae |
| Pritchardia munroi * | Loulu | Arecaceae |
| Pritchardia pacifica | Fiji fan palm | Arecaceae |
| Pritchardia remota * | Nihoa fan palm | Arecaceae |
| Pritchardia sp. * | Loulu | Arecaceae |
| Pritchardia thurstonii | Long inflorescence Fiji fan palm | Arecaceae |
| Prosopis glandulosa | Honey mesquite | Fabaceae |
| Prosopis juliflora | Long thorn kiawe, big-leafed kiawe, algaroba, mesquite | Fabaceae |
| Prosopis pallida | Kiawe, keawe, algaroba, mesquite | Fabaceae |
| Prosopis sp. | Hybrid kiawe? | Fabaceae |
| Protea cynaroides | King protea | Proteaceae |
| Protea neriifolia | Oleander leaved protea | Proteaceae |
| Protea repens | Sugar bush | Proteaceae |
| Protea sp. | Protea | Proteaceae |
| Prunella vulgaris | Selfheal | Lamiaceae |
| Prunus armeniaca | Apricot | Rosaceae |
| Prunus campanulata | Taiwan cherry | Rosaceae |
| Prunus cerasifera x salicina | Methley plum, cherry plum | Rosaceae |
| Prunus domestica | Plum | Rosaceae |
| Prunus persica var. nucipersica | Nectarine | Rosaceae |
| Prunus persica var. persica | Peach | Rosaceae |
| Prunus salicina | Plum | Rosaceae |
| Prunus sp. | Prunus | Rosaceae |
| Pseudananas sagenarius | Pseudananas | Bromeliaceae |
| Pseudelephantopus spicatus | Dog's tongue | Asteraceae |
| Pseuderanthemum carruthersii var. atropurpureum | Purple false eranthumum | Acanthaceae |
| Pseuderanthemum carruthersii var. carruthersii | Golden eldorado | Acanthaceae |
| Pseuderanthemum laxiflorum | Purple glory | Acanthaceae |
| Pseudognaphalium sandwicensium var. sandwicensium * | Enaena | Asteraceae |
| Pseudogynoxys chenopodioides | Mexican flame vine, orange flowered senecio | Asteraceae |
| Pseudomussaenda flava | Dwarf mussaenda, white wing | Rubiaceae |
| Pseudopanax lessonii | Houpara | Araliaceae |
| Psidium cattleianum | Strawberry guava, waiawi ulaula | Myrtaceae |
| Psidium guajava | Guava | Myrtaceae |
| Psilotum complanatum * | Moa nahele, pipi, flat-stemmed whiskfern | Psilotaceae |
| Psilotum nudum * | Moa | Psilotaceae |
| Psophocarpus tetragonolobus | Wing bean | Fabaceae |
| Psychotria mariniana * | Kopiko | Rubiaceae |
| Psychotria sp. * | Kopiko | Rubiaceae |
| Psydrax odorata * | Alahee | Rubiaceae |
| Pteridium aquilinum var. decompositum * | Bracken fern | Hypolepidaceae |
| Pteris cretica * | Cretan brake | Pteridaceae |
| Pteris ensiformis | Silver lace fern, slender brake fern | Pteridaceae |
| Pteris excelsa * | Waimakanui | Pteridaceae |
| Pteris hillebrandii * | Pteris | Pteridaceae |
| Pteris vittata | Ladder brake | Pteridaceae |
| Pterocarpus indicus | Narra, bloodwood, Burmese rosewood | Fabaceae |
| Pterocarpus indicus f. echinatus | Prickly narra | Fabaceae |
| Ptychosperma elegans | Solitaire palm | Arecaceae |
| Ptychosperma macarthurii | MacArthur palm | Arecaceae |
| Pueraria montana var. lobata | Kudzu | Fabaceae |
| Punica granatum | Pomegranate | Punicaceae |
| Puya sp. | Puya | Bromeliaceae |
| Pyracantha angustifolia | Firethorn | Rosaceae |
| Pyracantha crenatoserrata | Firethorn | Rosaceae |
| Pyracantha koidzumii | Formosa firethorn | Rosaceae |
| Pyracantha sp. | Firethorn | Rosaceae |
| Pyrostegia venusta | Flame vine | Bignoniaceae |
| Pyrus communis | Common pear, European pear | Rosaceae |
| Pyrus pyrifolia var. culta | Asian pear, Japanese pear, sand pear | Rosaceae |
| Quercus virginiana | Live oak | Fagaceae |
| Quisqualis indica | Rangoon creeper | Combretaceae |
| Radermachera sinica | China doll | Bignoniaceae |
| Raoulia australis | Raoulia, common mat daisy | Asteraceae |
| Raphanus sativus | Wild radish, radish, daikon | Brassicaceae |
| Rauvolfia sandwicensis * | Hao | Apocynaceae |
| Ravenala madagascariensis | Traveler's palm | Strelitziaceae |
| Ravenea rivularis | Majesty palm | Arecaceae |
| Reichardia picroides | Reichardia | Asteraceae |
| Reichardia tingitana | Reichardia | Asteraceae |
| Reynoldsia sandwicensis * | Ohe, ohe makai, ohe kukuluaeo, oheohe, ohekai | Araliaceae |
| Rhamnus californica | California buckthorn | Rhamnaceae |
| Rhaphiolepis umbellata | Yeddo hawthorn | Rosaceae |
| Rhaphiolepis x delacourii | Enchantress hawthorn | Rosaceae |
| Rhapis excelsa | Bamboo palm, rhapis palm | Arecaceae |
| Rhapis humilis | Slender lady palm, shuro-chiku | Arecaceae |
| Rhizophora mangle | Red mangrove | Rhizophoraceae |
| Rhododendron eriocarpum | Dwarf indica azalea, gumpo azalea | Ericaceae |
| Rhododendron sp. | Rhododendron, vireya, azalea | Ericaceae |
| Rhodomyrtus tomentosa | Downy rose myrtle | Myrtaceae |
| Rhus sandwicensis * | Neneleau, neleau | Anacardiaceae |
| Rhynchospora caduca | Beak rush | Cyperaceae |
| Rhynchospora chinensis subsp. spiciformis * | Rhynchospora | Cyperaceae |
| Rhynchospora sp. ? | Rhynchospora | Cyperaceae |
| Richardia brasiliensis | Richardia | Rubiaceae |
| Richardia grandiflora | Mexican clover | Rubiaceae |
| Ricinus communis | Castor bean | Euphorbiaceae |
| Rivina humilis | Coral berry, rouge plant | Phytolaccaceae |
| Roldana petasitis | Velvet groundsel | Asteraceae |
| Rosa chinensis | Lokelani rose | Rosaceae |
| Rosa laevigata | Cherokee rose | Rosaceae |
| Rosa sp. | Rose | Rosaceae |
| Rosmarinus officinalis | Rosemary | Lamiaceae |
| Roystonea regia | Royal palm, Cuban palm | Arecaceae |
| Rubus argutus | Blackberry | Rosaceae |
| Rubus discolor | Himalayan blackberry | Rosaceae |
| Rubus ellipticus | Yellow Himalayan raspberry | Rosaceae |
| Rubus glaucus | Andean raspberry | Rosaceae |
| Rubus hawaiensis * | Akala | Rosaceae |
| Rubus macraei * | Akala | Rosaceae |
| Rubus niveus | Mysore raspberry, hill raspberry | Rosaceae |
| Rubus rosifolius | Thimbleberry, olaa | Rosaceae |
| Ruellia brevifolia | Ruellia | Acanthaceae |
| Ruellia brittoniana | Mexican petunia | Acanthaceae |
| Ruellia chartacea | Ruellia | Acanthaceae |
| Ruellia elegans | Ruellia | Acanthaceae |
| Ruellia macrantha | Christmas pride | Acanthaceae |
| Ruellia squarrosa | Ruellia | Acanthaceae |
| Rumex acetosella | Sheep sorrel | Polygonaceae |
| Rumex giganteus * | Pawale, uhauhako | Polygonaceae |
| Rumohra adiantiformis | Leather fern, leather-leaf fern | Dryopteridaceae |
| Ruppia maritima * | Ditchgrass | Ruppiaceae |
| Russelia equisetiformis | Firecracker plant, coral plant | Scrophulariaceae |
| Ruta graveolens | Rue | Rutaceae |
| Ruttya fruticosa | Jammy mouth, rabbit ears, hummingbird plant | Acanthaceae |
| Rytidosperma pilosum | Rytidosperma | Poaceae |
| Rytidosperma semiannulare | Rytidosperma | Poaceae |
| Sabal palmetto | Cabbage palmetto, Florida palmetto | Arecaceae |
| Saccharum officinarum | Ko, sugarcane | Poaceae |
| Sacciolepis indica | Glenwood grass | Poaceae |
| Sadleria cyatheoides * | Amau | Blechnaceae |
| Sadleria pallida * | Amau | Blechnaceae |
| Sadleria sp. * | Amau | Blechnaceae |
| Sagina japonica | Japanese pearlwort | Caryophyllaceae |
| Sagina subulata | Pearlwort, Irish moss | Caryophyllaceae |
| Sagittaria latifolia | Broadleaf arrowhead | Alismataceae |
| Saintpaulia ionantha | African violet | Gesneriaceae |
| Salix babylonica | Weeping willow | Salicaceae |
| Salsola tragus | Tumbleweed | Chenopodiaceae |
| Salvia coccinea | Scarlet sage, lililehua, Texas sage | Lamiaceae |
| Salvia farinacea | Victoria blue sage | Lamiaceae |
| Salvia involucrata | Rose leaf sage, rosebud salvia | Lamiaceae |
| Salvia leucantha | Mexican bush sage | Lamiaceae |
| Salvia madrensis | Forsythia sage, big yellow sage | Lamiaceae |
| Salvia occidentalis | West Indian sage | Lamiaceae |
| Salvia officinalis | Sage | Lamiaceae |
| Salvia procurrens | Salvia | Lamiaceae |
| Salvia sp. | Sage | Lamiaceae |
| Salvia splendens | Scarlet sage | Lamiaceae |
| Salvinia minima | Water spangles | Salviniaceae |
| Salvinia molesta | Giant salvinia | Salviniaceae |
| Samanea saman | Monkeypod | Fabaceae |
| Sambucus mexicana | Mexican elderberry | Adoxaceae |
| Sanchezia speciosa | Sanchezia | Acanthaceae |
| Sandoricum koetjape | Santol | Meliaceae |
| Sansevieria trifasciata | Mother in law's tongue, snake plant | Ruscaceae |
| Santalum ellipticum * | Iliahialoe, coast sandalwood | Santalaceae |
| Santalum freycinetianum var. lanaiense * | Iliahi | Santalaceae |
| Santalum haleakalae * | Iliahi, Haleakala sandalwood | Santalaceae |
| Santalum paniculatum * | Iliahi | Santalaceae |
| Sanvitalia speciosa | Creeping zinnia, Mexican zinnia, sunbini | Asteraceae |
| Sapindus saponaria * | Ae, manele | Sapindaceae |
| Sauvagesia erecta | Creole tea | Ochnaceae |
| Scaevola chamissoniana * | Naupaka kuahiwi | Goodeniaceae |
| Scaevola coriacea * | Dwarf naupaka | Goodeniaceae |
| Scaevola gaudichaudii * | Naupaka kuahiwi | Goodeniaceae |
| Scaevola taccada * | Naupaka | Goodeniaceae |
| Scheelea butyracea | Yagua palm, American oil palm | Arecaceae |
| Schefflera actinophylla | Octopus tree, umbrella plant | Araliaceae |
| Schefflera arboricola | Dwarf umbrella plant | Araliaceae |
| Schefflera elegantissima | False aralia | Araliaceae |
| Schefflera polybotrya | Schefflera | Araliaceae |
| Schiedea adamantis * | Schiedea | Caryophyllaceae |
| Schiedea globosa * | Schiedea | Caryophyllaceae |
| Schiedea haleakalensis * | Schiedea | Caryophyllaceae |
| Schiedea menziesii * | Schiedea | Caryophyllaceae |
| Schiedea salicaria * | Schiedea | Caryophyllaceae |
| Schinus molle | California pepper tree, pepper tree | Anacardiaceae |
| Schinus terebinthifolius | Brazillian pepper tree, christmas berry, wilelaiki, naniohilo | Anacardiaceae |
| Schizachyrium condensatum | Tufted beardgrass | Poaceae |
| Schizaea robusta * | Oalii makalii, haili o Pua, toothbrush fern | Schizaeaceae |
| Schizostachyum brachycladum | Sacred Bali bamboo | Poaceae |
| Schlumbergera truncata | Crab cactus, christmas cactus | Cactaceae |
| Schlumbergera x buckleyi | Christmas cactus | Cactaceae |
| Schoenoplectus californicus | California bulrush | Cyperaceae |
| Schoenoplectus sp. | Bulrush | Cyperaceae |
| Scleria testacea * | Nutgrass | Cyperaceae |
| Scoparia sp. | Scoparia | Scrophulariaceae |
| Scutellaria javanica | Skull cap | Lamiaceae |
| Scutellaria suffrutescens | Skull cap | Lamiaceae |
| Sechium edule | Chayote, pipinella | Cucurbitaceae |
| Sedum lineare | Carpet sedum | Crassulaceae |
| Sedum morganianum | Burrow's tail, donkey's tail | Crassulaceae |
| Sedum tetractinum | Chinese sedum | Crassulaceae |
| Selaginella arbuscula * | Lepelepe a moa | Selaginellaceae |
| Selaginella plana | Cyperus club moss, spikemoss | Selaginellaceae |
| Selaginella sp. | Spikemoss | Selaginellaceae |
| Sempervivum arachnoideum | Cobweb houseleek | Crassulaceae |
| Senecio cineraria | Dusty miller, silver ragwort | Asteraceae |
| Senecio madagascariensis | Fireweed | Asteraceae |
| Senecio mandraliscae | Blue finger | Asteraceae |
| Senecio rowleyanus | Bead plant, string of beads | Asteraceae |
| Senecio sp. | Senecio | Asteraceae |
| Senecio sylvaticus | Wood groundsel | Asteraceae |
| Senecio vulgaris | Common groundsel | Asteraceae |
| Senna alata | Candlebush | Fabaceae |
| Senna artemisioides | Feathery senna | Fabaceae |
| Senna didymobotrya | Popcorn senna | Fabaceae |
| Senna gaudichaudii * | Kolomona | Fabaceae |
| Senna multijuga | False sicklepod | Fabaceae |
| Senna occidentalis | Coffee senna | Fabaceae |
| Senna pendula | Pendant senna | Fabaceae |
| Senna polyphylla | Desert cassia, retama prieta | Fabaceae |
| Senna septemtrionalis | Senna, kolomona, kalamona | Fabaceae |
| Senna siamea | Pheasant wood, kassod tree | Fabaceae |
| Senna sp. | Senna | Fabaceae |
| Senna spectabilis | Spectacular cassia | Fabaceae |
| Senna surattensis | Scrambled egg plant | Fabaceae |
| Sequoia sempervirens | Redwood | Taxodiaceae |
| Serenoa repens | Saw palmetto | Arecaceae |
| Serianthes kanehirae | Ukall, monkeypod | Fabaceae |
| Serissa japonica | Snowrose, tree of a thousand stars | Rubiaceae |
| Sesbania grandiflora | Sesban, agati, dok khae, katuray | Fabaceae |
| Sesbania punicea | Rattlebox | Fabaceae |
| Sesbania tomentosa * | Ohai | Fabaceae |
| Sesuvium portulacastrum * | Akulikuli, sea purslane | Aizoaceae |
| Setaria palmifolia | Palmgrass | Poaceae |
| Setaria parviflora | Yellow foxtail | Poaceae |
| Setaria sphacelata | African bristle grass | Poaceae |
| Setaria verticillata | Bristly foxtail | Poaceae |
| Sherardia arvensis | Blue fieldmadder | Rubiaceae |
| Sicyos anunu * | Anunu | Cucurbitaceae |
| Sicyos erostratus * | Anunu | Cucurbitaceae |
| Sicyos hispidus * | Anunu | Cucurbitaceae |
| Sicyos macrophyllus * | Anunu | Cucurbitaceae |
| Sicyos maximowiczii * | Anunu | Cucurbitaceae |
| Sicyos pachycarpus * | Anunu | Cucurbitaceae |
| Sicyos sp. * | Anunu | Cucurbitaceae |
| Sida acuta | Sida | Malvaceae |
| Sida ciliaris | Red ilima, sida | Malvaceae |
| Sida cordifolia | Mallow plant | Malvaceae |
| Sida fallax * | Ilima | Malvaceae |
| Sida rhombifolia | Sida | Malvaceae |
| Sida sp. | Sida | Malvaceae |
| Sidastrum micranthum | Sand mallow | Malvaceae |
| Sideroxylon persimile | Bully tree | Sapotaceae |
| Sigesbeckia orientalis | Small yellow crown beard | Asteraceae |
| Silene alexandri * | Alexander's catchfly | Caryophyllaceae |
| Silene gallica | Small flowered catchfly | Caryophyllaceae |
| Silene struthioloides * | Catchfly | Caryophyllaceae |
| Silybum marianum | Milk thistle, Mary's thistle | Asteraceae |
| Simarouba glauca | Olivo, paradise tree | Simaroubaceae |
| Sisymbrium altissimum | Tumble mustard | Brassicaceae |
| Sisyrinchium exile * | Sisyrinchium | Iridaceae |
| Smilax melastomifolia * | Hoi kuahiwi | Smilacaceae |
| Solandra maxima | Cup of gold | Solanaceae |
| Solanum americanum * | Popolo, glossy nightshade | Solanaceae |
| Solanum linnaeanum | Apple of sodom | Solanaceae |
| Solanum lycopersicum var. cerasiforme | Currant tomato, cherry tomato | Solanaceae |
| Solanum lycopersicum var. lycopersicum | Tomato | Solanaceae |
| Solanum melongena | Eggplant | Solanaceae |
| Solanum muricatum | Pepino dulce, melon pear | Solanaceae |
| Solanum nelsonii * | Popolo | Solanaceae |
| Solanum pseudocapsicum | Jerusalem cherry | Solanaceae |
| Solanum robustum | Shrubby nightshade | Solanaceae |
| Solanum rostratum | Solanum | Solanaceae |
| Solanum seaforthianum | Vining solanum | Solanaceae |
| Solanum torvum | Turkeyberry, chundakkai, pea eggplant, makhua phuang | Solanaceae |
| Solanum tuberosum | Potato | Solanaceae |
| Solanum wendlandii | Potato vine | Solanaceae |
| Solenostemon scutellarioides | Coleus, welewaka | Lamiaceae |
| Sonchus oleraceus | Sow thistle | Asteraceae |
| Sophora chrysophylla * | Mamane | Fabaceae |
| Sophora tomentosa | Yellow necklace pod, silverbush | Fabaceae |
| Sorghum bicolor | Sorghum | Poaceae |
| Sorghum halepense | Johnson grass | Poaceae |
| Spathiphyllum sp. | Peace lily, spathe flower | Araceae |
| Spathiphyllum wallisii | Peace lily, spathe flower | Araceae |
| Spathodea campanulata | African tulip tree | Bignoniaceae |
| Spathoglottis plicata | Philippine ground orchid | Orchidaceae |
| Spergularia marina | Saltmarsh sand spurry | Caryophyllaceae |
| Spermacoce assurgens | Buttonweed | Rubiaceae |
| Spermolepis hawaiiensis * | Spermolepis | Apiaceae |
| Sphaeropteris cooperi | Australian tree fern | Cyatheaceae |
| Sphagneticola trilobata | Wedelia | Asteraceae |
| Sphenomeris chinensis * | Palaa | Lindsaeaceae |
| Spinacia oleracea | Spinach | Chenopodiaceae |
| Spiraea cantoniensis | Reeves' spirea, double bridal wreath | Rosaceae |
| Spirodela polyrhiza | Giant duck weed | Araceae |
| Spondias dulcis | Otaheite apple | Anacardiaceae |
| Spondias mombin | Hog plum, jobo, yellow mombin | Anacardiaceae |
| Spondias purpurea | Jocote, red mombin, Spanish plum | Anacardiaceae |
| Spondias sp. | Makok | Anacardiaceae |
| Sporobolus diander | Indian dropseed | Poaceae |
| Sporobolus elongatus | Rat tail grass | Poaceae |
| Sporobolus filiferus | Dropseed | Poaceae |
| Sporobolus indicus | Smutgrass | Poaceae |
| Sporobolus pyramidatus | Dropseed | Poaceae |
| Sporobolus sp. | Dropseed | Poaceae |
| Sporobolus virginicus * | Akiaki | Poaceae |
| Sprekelia formosissima | Jacobean lily | Liliaceae |
| Stachys arvensis | Staggerweed | Lamiaceae |
| Stachytarpheta cayennensis | Vervain | Verbenaceae |
| Stachytarpheta jamaicensis | Jamaica vervain | Verbenaceae |
| Stachytarpheta mutabilis | Changeable vervain | Verbenaceae |
| Stapelia gigantea | Zulu-giant, giant toad plant | Apocynaceae |
| Stemmadenia litoralis | Lechoso | Apocynaceae |
| Stenogyne calycosa * | Native mint | Lamiaceae |
| Stenogyne kamehamehae * | Stenogyne | Lamiaceae |
| Stenogyne microphylla * | Native mint | Lamiaceae |
| Stenogyne rugosa * | Maohiohi | Lamiaceae |
| Stenotaphrum secundatum | St. Augustine grass | Poaceae |
| Sterculia foetida | Stinky sterculia, hazel sterculia | Sterculiaceae |
| Stetsonia coryne | Toothpick cactus | Cactaceae |
| Sticherus owhyhensis * | Uluhe, unuhe | Gleicheniaceae |
| Stictocardia tiliifolia | Crimson morning glory | Convolvulaceae |
| Stigmaphyllon ciliatum | Orchid vine, Brazilian golden vine | Malpighiaceae |
| Streblus pendulinus * | Aiai | Moraceae |
| Strelitzia nicolai | White bird of paradise | Strelitziaceae |
| Strelitzia reginae | Bird of paradise | Strelitziaceae |
| Streptosolen jamesonii | Orange marmalade bush | Solanaceae |
| Strobilanthes sp. | Strobilanthes | Acanthaceae |
| Strongylodon macrobotrys | Jade vine | Fabaceae |
| Stylosanthes scabra | Stylosanthes | Fabaceae |
| Stylosanthes viscosa | Stylosanthes | Fabaceae |
| Suriana maritima | Bay cedar | Simaroubaceae |
| Sutera cordata | Bacopa | Scrophulariaceae |
| Swietenia humilis | Honduras mahogany, Mexican mahagony | Meliaceae |
| Swietenia mahagoni | Mahogany | Meliaceae |
| Syagrus romanzoffiana | Queen palm | Arecaceae |
| Symphytum officinale | Common comfrey | Boraginaceae |
| Synadenium grantii | African milkbush | Euphorbiaceae |
| Syncarpia glomulifera | Turpentine tree | Myrtaceae |
| Synedrella nodiflora | Node weed | Asteraceae |
| Syngonium podophyllum | Nephthytis | Araceae |
| Syngonium sp. | Syngonium | Araceae |
| Synsepalum dulcificum | Miraculous berry, miracle fruit | Sapotaceae |
| Syzygium aromaticum | Clove | Myrtaceae |
| Syzygium cumini | Java plum | Myrtaceae |
| Syzygium jambos | Rose apple | Myrtaceae |
| Syzygium malaccense | Mountain apple | Myrtaceae |
| Syzygium samarangense | Waxapple, love apple, bell fruit, Java apple | Myrtaceae |
| Syzygium sandwicensis * | Ohia ha | Myrtaceae |
| Syzygium sp. | Syzygium | Myrtaceae |
| Tabebuia aurea | Caribbean trumpet tree | Bignoniaceae |
| Tabebuia donnell-smithii | Primavera, gold tree, golden tree | Bignoniaceae |
| Tabebuia heterophylla | Pink trumpet tree, pink tecoma | Bignoniaceae |
| Tabebuia impetiginosa | Amapa rosa, ipe roxo | Bignoniaceae |
| Tabebuia rosea | Pink tecoma, rosy trumpet tree | Bignoniaceae |
| Tabebuia serratifolia | Trumpet tree | Bignoniaceae |
| Tabebuia sp. | Trumpet tree | Bignoniaceae |
| Tabernaemontana divaricata | Crepe jasmine, coffee rose, paper gardenia, spiral gardenia | Apocynaceae |
| Tabernaemontana pachysiphon | Giant pinwheel flower | Apocynaceae |
| Tabernaemontana pandacaqui | Pandakaki, phut farang | Apocynaceae |
| Tabernaemontana sp. | Tabernaemontana | Apocynaceae |
| Tacca chantrieri | Batflower | Dioscoreaceae |
| Tacca leontopetaloides | Pia, Polynesian arrowroot | Dioscoreaceae |
| Tagetes erecta | African marigold, Aztec marigold | Asteraceae |
| Tagetes lemmoni | Mountain marigold, Copper Canyon daisy | Asteraceae |
| Tagetes lucida | Sweet scented marigold | Asteraceae |
| Talinum paniculatum | Jewels of Opar | Portulacaceae |
| Tamarindus indica | Tamarind | Fabaceae |
| Tamarix aphylla | Tamarisk, salt cedar | Tamaricaceae |
| Tamarix sp. | Tamarisk, salt cedar | Tamaricaceae |
| Tapeinochilos ananassae | Indonesian red wax ginger | Costaceae |
| Taraxacum officinale | Common dandelion, laulele, lauhele | Asteraceae |
| Taxodium distichum | Bald cypress | Taxodiaceae |
| Tecoma capensis | Cape honeysuckle | Bignoniaceae |
| Tecoma stans | Yellow tecoma | Bignoniaceae |
| Tecomanthe venusta | New Guinea creeper | Bignoniaceae |
| Tectaria gaudichaudii * | Iwaiwa lau nui | Dryopteridaceae |
| Tectona grandis | Teak | Verbenaceae |
| Telopea sp. | Telopea | Proteaceae |
| Telosma cordata | Pakalana, Chinese violet, tonkin creeper | Asclepiadaceae |
| Tephrosia purpurea var. purpurea | Auhuhu, ahuhu | Fabaceae |
| Terminalia catappa | False kamani | Combretaceae |
| Terminalia megalocarpa | Tropical almond | Combretaceae |
| Terminalia melanocarpa | Terminalia | Combretaceae |
| Terminalia myriocarpa | Jhalna | Combretaceae |
| Terminalia nitens | Terminalia | Combretaceae |
| Terminalia sp. | Terminalia | Combretaceae |
| Tetragonia tetragonioides | New Zealand spinach | Aizoaceae |
| Tetramolopium filiforme * | Makua daisy | Asteraceae |
| Tetramolopium humile subsp. haleakalae * | Tetramolopium | Asteraceae |
| Tetramolopium humile subsp. humile * | Tetramolopium | Asteraceae |
| Tetramolopium rockii * | Rock's tetramolopium | Asteraceae |
| Tetramolopium sylvae * | Sylva's tetramolopium | Asteraceae |
| Tetrapanax papyrifer | Chinese rice-paper plant, tung-tsau | Araliaceae |
| Tetraplasandra hawaiensis * | Ohe mauka | Araliaceae |
| Tetraplasandra kavaiensis * | Oheohe | Araliaceae |
| Tetraplasandra oahuensis * | Ohe, ohe mauka | Araliaceae |
| Tetrastigma pubinerve | Tetrastigma | Vitaceae |
| Tetrazygia bicolor | Tetrazygia | Melastomataceae |
| Thalia geniculata | Bent alligator flag | Marantaceae |
| Theobroma cacao | Cacao, cocoa tree | Sterculiaceae |
| Thespesia populnea * | Milo | Malvaceae |
| Thevetia peruviana | Be-still tree, yellow oleaner, lucky nut, nohomalie | Apocynaceae |
| Thrinax radiata | Florida thatch palm | Arecaceae |
| Thryptomene saxicola | Rock thryptomene | Myrtaceae |
| Thryptomene sp. | Thryptomene | Myrtaceae |
| Thuja occidentalis | Eastern white cedar, American arbot-vitae | Cupressaceae |
| Thuja plicata | Western red cedar, giant arbor-vitae | Cupressaceae |
| Thuja sp. | Cedar | Cupressaceae |
| Thunbergia alata | Black-eyed Susan vine | Acanthaceae |
| Thunbergia battiscombei | Fuzzy thunbergia, blue boy, blue glory | Acanthaceae |
| Thunbergia coccinea | Scarlet thunbergia | Acanthaceae |
| Thunbergia erecta | Bush clock-vine, bush thunbergia, king's mantle | Acanthaceae |
| Thunbergia fragrans | Sweet clock-vine, white thunbergia | Acanthaceae |
| Thunbergia grandiflora | Trumpet vine, large-flowered thunbergia, Bengal trumpet | Acanthaceae |
| Thunbergia laurifolia | Blue trumpet vine, laurel-leaved thunbergia, purple allamanda | Acanthaceae |
| Thunbergia mysorensis | Dolls shoes | Acanthaceae |
| Thunbergia sp. | Clock vine | Acanthaceae |
| Thymus citriodorus | Lemon thyme | Lamiaceae |
| Thymus praecox subsp. arcticus | Creeping thyme | Lamiaceae |
| Thymus serpyllum | Wild thyme, creeping thyme | Lamiaceae |
| Thymus vulgaris | Thyme | Lamiaceae |
| Tibouchina granulosa | Glory tree | Melastomataceae |
| Tibouchina herbacea | Cane Tibouchina | Melastomataceae |
| Tibouchina longifolia | White flower Tibouchina | Melastomataceae |
| Tibouchina multiflora | Today-tomorrow Tibouchina | Melastomataceae |
| Tibouchina urvilleana | Glory bush | Melastomataceae |
| Tillandsia lindenii | Air plant, tillandsia | Bromeliaceae |
| Tillandsia sp. | Air plant, tillandsia | Bromeliaceae |
| Tillandsia usneoides | Spanish moss, Pele's hair | Bromeliaceae |
| Tipuana tipu | Tipa, pride of Bolivia | Fabaceae |
| Tithonia diversifolia | Tree marigold | Asteraceae |
| Tithonia rotundifolia | Mexican sunflower | Asteraceae |
| Toona ciliata | Australian red cedar | Meliaceae |
| Torenia fournieri | Torenia, wishbone flower, Olaa beauty | Plantaginaceae |
| Torenia glabra | Torenia | Plantaginaceae |
| Torenia sp. | Torenia, wishbone flower | Plantaginaceae |
| Touchardia latifolia * | Olona | Urticaceae |
| Tournefortia argentea | Tree heliotrope | Boraginaceae |
| Trachelospermum asiaticum | Japanese star jasmine | Apocynaceae |
| Trachelospermum jasminoides | Confederate jasmine, star jasmine | Apocynaceae |
| Tradescantia fluminensis | White flowered wandering jew, green wandering jew | Commelinaceae |
| Tradescantia multiflora | Tahitian bridal veil | Commelinaceae |
| Tradescantia pallida | Purple heart, wandering jew | Commelinaceae |
| Tradescantia sp. | Tradescantia | Commelinaceae |
| Tradescantia spathacea | Oyster plant, rhoeo, wandering jew | Commelinaceae |
| Tradescantia zebrina | Wandering jew | Commelinaceae |
| Tragus berteronianus | Bur grass | Poaceae |
| Trema orientalis | Gunpowder tree | Cannabaceae |
| Trematolobelia macrostachys * | Kolii | Campanulaceae |
| Trianthema portulacastrum | Trianthema | Aizoaceae |
| Tribulus cistoides * | Nohu | Zygophyllaceae |
| Tribulus terrestris | Tribulus | Zygophyllaceae |
| Trichosanthes cucumerina var. anguina | Snake gourd, long gourd | Cucurbitaceae |
| Tridax procumbens | Coat buttons | Asteraceae |
| Trifolium arvense | Rabbit-foot clover | Fabaceae |
| Trifolium campestre | Field clover | Fabaceae |
| Trifolium pratense var. sativum | Red clover | Fabaceae |
| Trifolium repens | White clover | Fabaceae |
| Trisetum glomeratum * | Pili uka | Poaceae |
| Tristellateia australasiae | Shower of gold climber, galphimia vine | Malpighiaceae |
| Triumfetta semitriloba | Sacramento bur | Malvaceae |
| Tropaeolum majus | Garden nasturtium | Tropaeolaceae |
| Tulbaghia violacea | Society garlic | Liliaceae |
| Tulipa sp. | Tulip | Liliaceae |
| Turnera ulmifolia | Yellow alder | Turneraceae |
| Typha latifolia | Common cat tail, cattail | Typhaceae |
| Typha sp. | Cat tail, cattail | Typhaceae |
| Ulex europaeus | Gorse | Fabaceae |
| Ulmus parvifolia | Chinese elm | Ulmaceae |
| Ulmus sp. | Elm | Ulmaceae |
| Uncinia uncinata * | Hook sedge | Cyperaceae |
| Unknown agavaceae ? | Unknown agavaceae | Agavaceae |
| Unknown apiaceae ? | Unknown apiaceae | Apiaceae |
| Unknown araceae | Unknown araceae | Araceae |
| Unknown arecaceae ? | Unknown palm | Arecaceae |
| Unknown asphodelaceae ? | Unknown asphodelaceae | Asphodelaceae |
| Unknown asteraceae ? | Unknown asteraceae | Asteraceae |
| Unknown bamboo ? | Unknown bamboo | Poaceae |
| Unknown bignoniaceae | Unknown bignoniaceae | Bignoniaceae |
| Unknown bromeliaceae ? | Unknown bromeliaceae | Bromeliaceae |
| Unknown cactaceae ? | Unknown cactaceae | Cactaceae |
| Unknown crassulaceae ? | Unknown crassulaceae | Crassulaceae |
| Unknown cucurbitaceae ? | Unknown cucurbitaceae | Cucurbitaceae |
| Unknown cupressaceae ? | Unknown cupressaceae | Cupressaceae |
| Unknown cyperaceae ? | Unknown sedge | Cyperaceae |
| Unknown euphorbiaceae ? | Unknown euphorbiaceae | Euphorbiaceae |
| Unknown fabaceae ? | Unknown fabaceae | Fabaceae |
| Unknown iridaceae ? | Unknown iridaceae | Iridaceae |
| Unknown liliaceae ? | Unknown liliaceae | Liliaceae |
| Unknown malvaceae ? | Unknown malvaceae | Malvaceae |
| Unknown myrtaceae ? | Unknown myrtaceae | Myrtaceae |
| Unknown orchidaceae ? | Unknown orchidaceae | Orchidaceae |
| Unknown passifloraceae ? | Unknown passifloraceae | Passifloraceae |
| Unknown poaceae ? | Unknown grass | Poaceae |
| Unknown proteaceae ? | Unknown proteaceae | Proteaceae |
| Unknown pteridophyte ? | Unknown pteridophyte | Unknown |
| Unknown rubiaceae ? | Unknown rubiaceae | Rubiaceae |
| Unknown scrophulariaceae | Snapdragon | Scrophulariaceae |
| Unknown sp. ? | Unknown | Unknown |
| Unknown vitaceae ? | Unknown vitaceae | Vitaceae |
| Unknown zingiberaceae | Unknown zingiberaceae | Zingiberaceae |
| Urena lobata | Bur mallow, pink burr | Malvaceae |
| Urera glabra * | Opuhe | Urticaceae |
| Urochloa mutica | California grass, para grass | Poaceae |
| Urochloa plantaginea | Brachiaria | Poaceae |
| Vaccinium calycinum * | Ohelo | Ericaceae |
| Vaccinium reticulatum * | Ohelo | Ericaceae |
| Vaccinium sp. * | Ohelo | Ericaceae |
| Vandenboschia davallioides * | Palai hihi, kilau, creeping palai | Hymenophyllaceae |
| Vandenboschia draytoniana * | Vandenboschia | Hymenophyllaceae |
| Vanilla planifolia | Vanilla | Orchidaceae |
| Veitchia joannis | Joannis palm, niusawa palm | Arecaceae |
| Veitchia merrillii | Manila palm, Christmas palm | Arecaceae |
| Veitchia sp. | Veitchia palm | Arecaceae |
| Verbascum thapsus | Common mullein | Scrophulariaceae |
| Verbena litoralis | Vervain, owi | Verbenaceae |
| Verbena sp. | Verbena | Verbenaceae |
| Verbena tenuisecta | Moss verbena | Verbenaceae |
| Verbesina encelioides | Golden crown-beard | Asteraceae |
| Vernonia elliptica | Climbing vernonia | Asteraceae |
| Vernonia sp. | Vernonia | Asteraceae |
| Veronica arvensis | Corn speedwell | Plantaginaceae |
| Veronica peregrina | Purslane speedwell | Plantaginaceae |
| Veronica serpyllifolia | Thyme-leaved speedwell | Plantaginaceae |
| Viburnum sp. | Viburnum | Adoxaceae |
| Viburnum suspensum | Viburnum | Caprifoliaceae |
| Vicia sativa | Vetch | Fabaceae |
| Vicia sp. | Vetch | Fabaceae |
| Vigna caracalla | Corkscrew vine | Fabaceae |
| Vigna luteola | Hairypod cowpea | Fabaceae |
| Vigna marina * | Beach pea, nanea | Fabaceae |
| Vigna o-wahuensis * | Vigna | Fabaceae |
| Vigna speciosa | Wondering cow pea | Fabaceae |
| Vigna unguiculata subsp. sesquipedalis | Yard long bean, asparagus bean | Fabaceae |
| Vinca major | Vinca | Apocynaceae |
| Vinca sp. | Vinca | Apocynaceae |
| Viola sp. | Viola | Violaceae |
| Vitex parviflora | Tree vitex, small flowered vitex, molave | Verbenaceae |
| Vitex rotundifolia * | Pohinahina | Lamiaceae |
| Vitex trifolia | Vitex | Lamiaceae |
| Vitis sp. | Grape | Vitaceae |
| Vitis vinifera | Grape | Vitaceae |
| Vriesea imperialis | Bromeliad | Bromeliaceae |
| Vriesea sp. | Bromeliad | Bromeliaceae |
| Vriesea splendens | Flaming sword | Bromeliaceae |
| Vulpia bromoides | Brome fescue | Poaceae |
| Vulpia myuros | Rat tail fescue | Poaceae |
| Vulpia sp. | Fescue | Poaceae |
| Wahlenbergia gracilis | Wahlenbergia | Campanulaceae |
| Wahlenbergia marginata | Wahlenbergia | Campanulaceae |
| Waltheria indica * | Uhaloa | Malvaceae |
| Washingtonia filifera | Californian fan palm | Arecaceae |
| Washingtonia robusta | Mexican fan palm | Arecaceae |
| Washingtonia sp. | Fan palm | Arecaceae |
| Watsonia borbonica | Watsonia | Iridaceae |
| Wikstroemia monticola * | Akia | Thymelaeaceae |
| Wikstroemia oahuensis * | Akia | Thymelaeaceae |
| Wikstroemia oahuensis var. oahuensis * | Akia kuahiwi | Thymelaeaceae |
| Wikstroemia uva-ursi * | Akia | Thymelaeaceae |
| Wilkesia gymnoxiphium * | Iliau | Asteraceae |
| Wisteria florabunda | Wisteria | Fabaceae |
| Wodyetia bifurcata | Foxtail palm | Arecaceae |
| Xanthium strumarium var. canadense | Cocklebur, kikania | Asteraceae |
| Xanthorrhoea preissii | Grasstree | Xanthorrhoeaceae |
| Xanthosoma robustum | Ape, elephant ear | Araceae |
| Xanthosoma sagittifolium | Mickey mouse taro | Araceae |
| Xanthosoma sp. | Ape, elephant ear | Araceae |
| Xanthostemon chrysanthus | Golden penda | Myrtaceae |
| Xylosma hawaiiense * | Maua | Salicaceae |
| Youngia japonica | Oriental hawksbeard | Asteraceae |
| Yucca aloifolia | Spanish bayonet, dagger plant | Agavaceae |
| Yucca baccata | Banana yucca | Agavaceae |
| Yucca filamentosa | Adam's needle, gold sword yucca | Agavaceae |
| Yucca sp. | Yucca | Agavaceae |
| Zamia furfuracea | Cardboard zamia | Zamiaceae |
| Zamia integrifolia | Florida arrowroot | Zamiaceae |
| Zamia pumila | Coontie | Zamiaceae |
| Zamia sp. | Zamia | Zamiaceae |
| Zamioculcas zamiifolia | Zamioculcas, zz plant | Araceae |
| Zantedeschia albomaculata | Spotted calla lily | Araceae |
| Zantedeschia sp. | Calla lily | Araceae |
| Zanthoxylum hawaiiense * | Ae, zanthoxylum | Rutaceae |
| Zanthoxylum kauaense * | Ae, zanthoxylum | Rutaceae |
| Zea mays | Corn | Poaceae |
| Zephyranthes citrina | Yellow rain lily | Liliaceae |
| Zephyranthes sp. | Rain lily | Liliaceae |
| Zeuxine strateumatica | Zeuxine | Orchidaceae |
| Zingiber malaysiana | Black ginger, midnight ginger | Zingiberaceae |
| Zingiber officinale | Ginger | Zingiberaceae |
| Zingiber spectabile | Golden beehive ginger, nodding gingerwort | Zingiberaceae |
| Zingiber zerumbet | Awapuhi | Zingiberaceae |
| Zinnia elegans | Zinnia | Asteraceae |
| Zinnia peruviana | Zinnia, pua pihi | Asteraceae |
| Zinnia sp. | Zinnia | Asteraceae |
| Ziziphus mauritiana | Indian jujube | Rhamnaceae |
| Zornia reticulata | Zornia | Fabaceae |
| Zoysia sp. | Zoysia grass | Poaceae |
