Pacific Island Ecosystems at Risk (PIER)
Report on invasive plant species in Palau (2002 survey)
Appendix 5. Other invasive species by location
Table 1. Other invasive species present on Koror, Ngerkebesang and Malakal
Scientific name |
Common Names (abridged) |
Family |
Habit |
Locations |
Ageratum conyzoides | billygoat-weed, chick week, goatweed, whiteweed, ngmak (Palau) | Asteraceae | herb | Koror, Malakal, Ngerekebesang |
**†Alternanthera sessilis | joyweed, sessile joyweed, okula beluulechad (Palau) | Amaranthaceae | herb | Koror |
Alysicarpus vaginalis | alyce-clover, buffalo-clover, one-leaf-clover | Fabaceae | herb | Koror, Malakal, Ngerekebesang |
Amaranthus dubius | amaranth, spleen amaranth | Amaranthaceae | herb | Koror, Malakal |
Amaranthus viridis | green amaranth, pigweed, slender amaranth | Amaranthaceae | herb | Koror, Ngerekebesang |
*Annona muricata | soursop, prickly custard apple, sausab (Palau) | Annonaceae | tree | Koror, Malakal, Ngerekebesang |
†Asclepias curassavica | bastard ipecac, blood flower, bloodflower milkweed, butterfly weed, false ipecac, milkweed | Asclepiadaceae | herb | Koror |
†Averrhoa bilimbi | bilimbi, cucumber tree, tree cucumber, tree sorrel | Oxalidaceae | tree | Koror, Ngerekebesang |
Axonopus compressus | blanket grass, carpetgrass | Poaceae | grass | Koror, Malakal, Ngerekebesang |
*Begonia × semperflorens-cultorum | bedding begonia, perpetual begonia, wax begonia | Begoniaceae | herb | Koror |
Bidens alba | beggar’s tick, Spanish needle, cobbler's pegs, romerillo | Asteraceae | herb | |
*Bixa orellana | anatto, annato, annatto, arnatto, lipstick tree, burek (Palau) | Bixaceae | shrub | Koror |
Blechum pyramidata | green shrimp plant, Browne’s blechum | Acanthaceae | herb |
Malakal, Koror |
*Breynia disticha | snowbush, snowbush breynia, sweetpea bush, foliage-flower | Euphorbiaceae | shrub |
Koror |
Caladium bicolor | caladium, elephant's-ear, fancy-leaf caladium, heart-of-Jesus | Araceae | herb |
Koror; Ngerekebesang (cult.) |
*Cananga odorata | perfume tree, chiráng (Palau), irang (Palau) | Annonaceae | tree |
Koror, Ngerekebesang |
*Catharanthus roseus | Cape periwinkle, Madagascar periwinkle, old-maid, rose periwinkle, rosy periwinkle | Apocynaceae | herb |
Koror, Ngerekebesang |
*Celosia argentea | cockscomb, esechilamalk (Palau) | Amaranthaceae | herb | Koror, Malakal, Ngerekebesang |
**Centella asiatica | Asiatic pennywort, Indian pennywort, marsh pennywort, pennyweed, elisichur (Palau), elsichur (Palau) | Apiaceae | herb | Koror, Ngerekebesang |
Chamaesyce hirta | asthma plant, garden spurge, pill-bearing spurge, hairy spurge, udall (Palau) | Euphorbiaceae | herb | Koror, Malakal, Ngerekebesang |
Chamaesyce prostrata | creeping splurge, prostrate spurge, red caustic creeper | Euphorbiaceae | herb | Koror, Malakal, Ngerekebesang |
†Chamaesyce thymifolia | red caustic creeper, thyme-leafed spurge | Euphorbiaceae | herb | Koror, Ngerekebesang |
†Cleome gynandra | African spider-flower, bastard-mustard, cat's-whiskers, spider wisp, wild spider flower | Capparaceae | herb | Koror |
†Coix lacryma-jobi | adlay, adlay millet, Job's-tears, demairuuch (Palau), tauiir (Palau) | Poaceae | grass | Koror, Ngerekebesang |
Cosmos sp. | cosmos | Asteraceae | herb | Koror |
Crassocephalum crepidoides | thickhead, fireweed, redflower ragleaf | Asteraceae | herb | Koror |
†Crotalaria incana | fuzzy rattlepod, woolly rattlepod, kuroteraria (Palau) | Fabaceae | shrub | Koror |
†Crotalaria pallida | salts rattlebox, smooth crotalaria, smooth rattlebox, smooth rattlepod, streaked rattlepod, striped crotalaria | Fabaceae | shrub | Koror |
†Crotalaria spectabilis | rattlebox, showy crotalaria, showy rattlebox, showy rattlepod | Fabaceae | herb | Koror, Ngerekebesang |
†Cyperus compressus | flat sedge | Cyperaceae | sedge | Koror, Malakal |
**†Cyperus cyperinus | long-headed sedge | Cyperaceae | sedge | Koror |
†Cyperus difformis | dirty-Dora, one-arm sedge, rice sedge, small-flower umbrella-plant, variable flat sedge | Cyperaceae | sedge | Malakal |
†Cyperus distans | slender cyperus | Cyperaceae | sedge | Koror |
**†Cyperus haspan | Cyperaceae | sedge | Koror | |
**†Cyperus iria | grasshopper’s cyperus, rice flat sedge, umbrella sedge, badel aus (Palau) | Cyperaceae | sedge | Koror, Malakal |
**†Cyperus pilosus | Cyperaceae | sedge | Koror | |
**†Cyrtococcum oxyphyllum | long-leaf cyrtococcum grass | Poaceae | grass | Koror |
Dactyloctenium aegyptium | beach wiregrass, button grass, coast button grass, comb fringe grass, crowfoot grass, duck grass, finger comb grass | Poaceae | grass | Koror, Malakal, Ngerekebesang |
*Datura metel | datura, downy thorn-apple, Hindu datura, Hindu thorn-apple, hoary thorn-apple, horn-of-plenty, jimson-weed, purple thorn-apple | Solanaceae | herb | Malakal |
*Delonix regia | flame tree, flamboyant, poinciana, nangiosákura (Palau), nangiosikura (Palau), nangyo (Palau) | Fabaceae | tree |
Koror |
†Desmodium gangeticum | Fabaceae | herb | Ngerekebesang | |
**†Desmodium heterocarpon | okula beluu (Palau) | Fabaceae | herb | Koror, Ngerekebesang |
Desmodium incanum | kaimi clover, Spanish clover | Fabaceae | shrub | Koror |
Desmodium triflorum | creeping tick trefoil, three-flower beggarweed, tropical trefoil, olmud (Palau) | Fabaceae | herb | Koror, Malakal, Ngerekebesang |
†Digitaria bicornis | southern crabgrass | Poaceae | grass | Ngerekebesang |
**Digitaria fuscescens | Y grass | Poaceae | grass | Koror |
Dioscorea bulbifera | aerial yam, air-potato, bitter yam, cheeky yam, potato yam, belloi (Palau) | Dioscoreaceae | vine | Koror, Ngerekebesang |
*Duranta erecta | duranta, golden dewdrop, pigeon-berry, sky-flower | Verbenaceae | shrub | Koror, Malakal, Ngerekebesang |
Echinochloa colona | awnless barnyard grass (Australia), corn panic grass, Deccan grass, jungle ricegrass, jungle rice, millet-rice, pigeon millet | Poaceae | grass | Koror, Malakal |
Eclipta prostrata | eclipta, false daisy, swamp daisy, white eclipta, deberebelela tengadidik (Palau) | Asteraceae | herb | Koror, Malakal, Ngerkebesang |
*Elaeis guineensis | African oil palm | Arecaceae | tree | Koror |
†Eleocharis dulcis | Chinese water-chestnut, ground-chestnut, waternut | Cyperaceae | sedge | Koror |
Emilia sonchifolia | Cupid's shaving-brush, emilia, Flora's paint brush, purple sow thistle, sow thistle | Asteraceae | herb | Koror, Malakal |
Episcia cupreata | episcia, flame violet | Gesneriaceae | herb | Koror, Malakal, Ngerekebesang |
**Eragrostis amabilis | Bug's egg grass, Japanese love grass, ouemoket (Palau) | Poaceae | grass | Koror |
†Eragrostis pilosa | hairy love grass, Indian love grass, soft lovegrass | Poaceae | grass | Koror |
**Eriochloa procera | Poaceae | grass | Koror, Malakal | |
**†Fimbristylis autumnalis | slender fimbristylis | Cyperaceae | sedge | Koror |
**†Fimbristylis littoralis | grass-like fimbristylis, lesser fimbristylis, kerngimes (Palau), kederang (Palau) | Cyperaceae | sedge | Koror |
**†Fuirena umbellata | desum ra mesei (Palau) | Cyperaceae | sedge | Koror |
*Gomphrena globosa | bachelor's-button, bozu, globe amaranth, pearly everlasting, botang (Palau) | Amaranthaceae | herb | Koror, Ngerekebesang |
**†Heliotropium indicum | Indian heliotrope, turnsole | Boraginaceae | herb | Koror |
Hippobroma longiflora | star of Bethlehem, udel ra badrei (Palau) | Campanulaceae | herb | Koror, Malakal, Ngerekebesang |
*Impatiens balsamina | impatiens, balsam, garden balsam, rose balsam, spotted snapweed, touch-me-not, hosengka (Palau) | Balsaminaceae | succulent | Koror |
*Impatiens walleriana | garden impatiens, balsam, busy lizzy, bizzy-lizzie, patient lucy; sultan’s flower | Balsaminaceae | succulent | Koror, Ngerekebesang |
†Imperata conferta | plume grass | Poaceae | grass | Koror |
*Ipomoea carnea subsp. fistulosa | bush morning glory, tree ipomoea | Convolvulaceae | shrub | Koror |
Ipomoea quamoclit | Cupid's flower, cypress vine, cypressvine morning-glory, star of Bethlehem, star-glory, sweet-willy, asangao (Palau) | Convolvulaceae | vine | Koror |
Ipomoea triloba | Aiea morning-glory, little bell, orech (Palau), torech (Palau) | Convolvulaceae | vine | Koror, Malakal, Ngerekebesang |
**Isachne globosa | Poaceae | grass | Koror | |
†Jasminum sambac | Arabian jasmine | Oleaceae | vine | Koror |
**†Lindernia antipoda | ilemelakel (Palau) | Scrophulariaceae | herb | Koror |
**Ludwigia hyssopifolia | Onagraceae | herb | Koror, Malakal, Ngerekebesang | |
**Ludwigia octovalvis | willow primrose, false primrose, yellow willow herb, erur (Palau) | Onagraceae | herb | Koror, Malakal, Ngerekebesang |
tropical girdlepod | Rubiaceae | herb | Koror, Malakal, Ngerekebesang | |
balsam-apple, bitter-melon, bitter gourd, balsam pear, squirting cucumber, cerasee, peria, markoso (Palau), markosong (Palau) | Cucurbitaceae | vine |
Koror, Malakal |
|
*Moringa oleifera | horseradish tree, drumstick tree, ben nut, morango, malungkai (Palau) | Moringaceae | tree |
Koror, Malakal |
Oldenlandia corymbosa | Rubiaceae | herb | Koror, Malakal, Ngerekebesang | |
**†Oplismenus hirtellus | basket grass, woods grass | Poaceae | grass | Koror, Malakal, Ngerekebesang |
*Opuntia sp. | drooping tree pear, prickly pear | Cactaceae | cactus | Koror, Ngerekebesang |
*Orthosiphon aristatus | cat’s whiskers, chemadecharebub (Palau), emadecharebub (Palau) | Lamiaceae | herb | Koror |
Oxalis barrelieri | Oxalidaceae | herb | Koror, Malakal, Ngerekebesang | |
†Paspalum scrobiculatum | rice grass; creeping paspalum, ditch millet, Indian paspalum, kodo millet, water couch, desum (Palau) | Poaceae | grass | Koror, Malakal, Ngerkebesang |
Peperomia pellucida | rtertiil (Palau) | Piperaceae | herb | Koror, Malakal, Ngerekebesang |
*Persea americana | avocado, alligator pear, bata (Palau) | Lauraceae | tree | Koror, Ngerekebesang |
Phyllanthus amarus | ukalla ruchel (Palau) | Euphorbiaceae | herb | Koror, Malakal, Ngerekebesang |
†Phyllanthus debilis | Euphorbiaceae | herb | Koror, Malakal | |
**†Phyllanthus urinaria | Euphorbiaceae | herb | Koror | |
Physalis angulata | annual ground cherry, bubeubedul (Palau) | Solanaceae | herb | Koror†, Malakal, Ngerekebesang |
Pilea microphylla | artillery plant, gunpowder plant, pistol plant, rockweed | Urticaceae | herb | Koror, Malakal, Ngerekebesang |
†Piriqueta racemosa | Turneraceae | herb | Koror | |
Polygala paniculata | island snake-root, keskus ra mekesong (Palau) | Polygalaceae | herb | Koror, Malakal, Ngerekebesang |
Portulaca oleracea | pigweed, purslane | Portulacaceae | herb | Koror |
Pseuderanthemum carruthersii | Acanthaceae | shrub | Ngerkebesang | |
**Pueraria montana var. lobata | kudzu, Japanese arrowroot | Fabaceae | vine | Koror |
Russelia equisetiformis | coralplant, fountainplant | Scrophulariaceae | shrub | Koror, Malakal |
†Senna occidentalis | antbush, coffee senna, korriu (Palau) | Fabaceae | shrub | Koror, Malakal |
†Sesbania cannabina | canicha, dhaincha, dhunchi, sesbania pea | Fabaceae | shrub | Koror, Malakal |
Sida rhombifolia | arrow-leaf sida, Cuban jute, Paddy's lucerne, Queensland-hemp, teaweed, keak (Palau) | Malvaceae | shrub | Koror, Malakal, Ngerekebesang |
†Solanum americanum | American nightshade, black nightshade, glossy nightshade | Solanaceae | herb | Koror, Malakal |
*Solenostemon scutellarioides | coleus | Lamiaceae | herb | |
†Sorghum bicolor | Sudan grass | Poaceae | grass | Malakal |
Spermacoce assurgens | buttonweed, okulabeluu (Palau) | Rubiaceae | herb | Koror, Malakal, Ngerekebesang |
†Spermacoce ernstii | Rubiaceae | herb | Koror | |
Spermacoce latifolia | Rubiaceae | herb | Koror, Malakal, Ngerekebesang | |
Stachytarpheta jamaicensis | bastard vervain, blue porterweed, Brazilian tea, Jamaica vervain, joee, light blue snakeweed, louch beluu (Palau) | Verbenaceae | herb | Koror, Malakal |
**†Stictocardia tiliifolia | stictocardia, crimson morning-glory | Convolvulaceae | vine | Koror |
Synedrella nodiflora | Cinderella weed (Australia), porter bush, synedrella | Asteraceae | herb | Koror, Malakal |
**Vernonia cinerea | ironweed, little ironweed, vernonia | Asteraceae | herb | Koror, Malakal, Ngerekebesang |
Youngia japonica | oriental hawksbeard | Asteraceae | herb | Koror |
*Cultivated
**Native/Micronesian introduction
†Reported present by Fosberg et al. (1979)
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This page revised 7 April 2009