Plant Threats to Pacific Ecosystems: Northern Cook Islands

PIER plant species present in the Northern Cook Islands listed by scientific name

A product of the Pacific Island Ecosystems at Risk project (PIER)

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This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur in the Northern Cook Islands. It includes those of environmental concern (including those that are probably of threat only to islands with high elevations) as well as agricultural and ruderal weeds.  Each species is linked by its scientific name to an individual write-up containing relevant information.

The information in this table is based on the supporting data and may not represent the current situation. Note also there may be discrepancies among data presented at geographic resolutions (e.g., island vs. island group vs. country-territory-state levels), depending upon the reliability of the data at each level.

Species are listed in alphabetic order.  You can browse this list or use the "find" function on your web browser to search by scientific name.

Can't find it here?  Check the list of synonyms for other names (the more common synonyms are included below) or search other lists and databases available on the Internet.

Stumped by botanical terms?  Here are links to a brief glossary and a search engine for botanical terms.

Scientific name (+Family) Often-used other Latin names Habit Primarily a threat
at high elevations?
Abutilon indicum   (Malvaceae) Sida indica L. shrub No
Acacia mangium   (Fabaceae)   tree No
Alocasia macrorrhizos   (Araceae) Alocasia indica Schott; Alocasia plumbea Van Houtte; Arum indicum Lour.; Arum macrorrhizon L.; Colocasia indica (Lour.) Kunth herb No
Alternanthera brasiliana   (Amaranthaceae) Gomphrena brasiliana L. herb No
Annona muricata   (Annonaceae)   tree No
Annona squamosa   (Annonaceae)   tree No
Bidens pilosa   (Asteraceae)   herb No
Bryophyllum pinnatum   (Crassulaceae) Kalanchoë pinnata Pers. succulent No
Caesalpinia pulcherrima   (Fabaceae) Poinciana pulcherrima L. shrub/tree No
Casuarina equisetifolia   (Casuarinaceae) Casuarina litorea L. var. litorea; Casuarina littorea Rumph. tree No
Catharanthus roseus   (Apocynaceae) Lochnera rosea (L.) Reichb. ex Steud.; Vinca rosea L. herb No
Cenchrus echinatus   (Poaceae)   grass No
Chamaesyce hirta   (Euphorbiaceae) Euphorbia hirta L. herb No
Chamaesyce hypericifolia   (Euphorbiaceae) Euphorbia glomifera Millsp.; Euphorbia hypericifolia L. herb No
Chamaesyce prostrata   (Euphorbiaceae) Euphorbia prostrata Aiton herb No
Chloris barbata   (Poaceae) Chloris inflata Link; Chloris paraguayensis Steud. grass No
Citrullus lanatus   (Cucurbitaceae) Citrullus aedulis Pangalo; Citrullus vulgaris Schrad. vine No
Citrus aurantiifolia   (Rutaceae)   tree No
Citrus limon   (Rutaceae) Citrus limonum Risso tree No
Clerodendrum buchananii var. fallax   (Lamiaceae) Clerodendrum speciosissimum van Geert ex Morren (although there is disagreement as to whether or not these species are synonymous per Smith, 1985). shrub No
Colocasia esculenta   (Araceae)   herb No
Commelina diffusa   (Commelinaceae)   herb No
Cryptostegia madagascariensis   (Apocynaceae)   vine No
Cyanthillium cinereum   (Asteraceae) Blumea chinensis (L.) DC.; Conyza chinensis L.; Conyza cinerea L.; Senecioides cinerea (L.) Kuntze ex Britt. & Wilson; Serratula cinerea (L.) Roxb.; Vernonia cinerea (L.) Less.; Vernonia cinerea var. parviflora (Reinw.) DC. herb No
Cynodon dactylon   (Poaceae)   grass No
Cyperus difformis   (Cyperaceae)   sedge No
Cyperus rotundus   (Cyperaceae) Chlorocyperus rotundus (L.) Palla; Cyperus purpuro-variegatus Boeckeler; Cyperus stoloniferum pallidus Boeckeler; Cyperus tetrastachyos Desf.; Cyperus tuberosus Roxb sedge No
Dieffenbachia seguine   (Araceae) Arum seguine Jacq.; Dieffenbachia maculata (Lodd.) G. Don; Dieffenbachia picta Schott herb No
Digitaria ciliaris   (Poaceae) Digitaria adscendens (Kunth) Henrard grass No
Echinochloa colona   (Poaceae)   grass No
Eclipta prostrata   (Asteraceae) Eclipta alba (L.) Hassk.; Verbesina alba L. herb No
Eleocharis geniculata   (Cyperaceae)   sedge No
Eleusine indica   (Poaceae)   grass No
Eleutheranthera ruderalis   (Asteraceae)   herb No
Emilia sonchifolia   (Asteraceae) Emilia javanica (Burm. f.) C. B. Rob. herb No
Eragrostis amabilis   (Poaceae) Eragrostis tenella (L.) P. Beauv. ex Roem. & Schult. grass No
Eugenia uniflora   (Myrtaceae)   shrub/tree No
Euphorbia cyathophora   (Euphorbiaceae)   herb No
Euphorbia tirucalli   (Euphorbiaceae)   tree No
Ficus carica   (Moraceae)   tree No
Gloriosa superba   (Colchicaceae)   herb No
Gomphrena globosa   (Amaranthaceae)   herb No
Hoya australis   (Apocynaceae) Hoya dalrympliana F. Muell. vine No
Ipomoea batatas   (Convolvulaceae)   vine No
Ipomoea violacea   (Convolvulaceae) Convolvulus tuba Schlechtend.; Ipomoea macrantha Roem. & Schult.; Ipomoea tuba (Schlechtend.) G. Don vine No
Kyllinga brevifolia   (Cyperaceae) Cyperus brevifolius (Rottb.) Endl. ex Hassk. sedge No
Kyllinga nemoralis   (Cyperaceae) Cyperus kyllingia Endl.; Kyllinga cephalotes (Jacq.) Druce; Kyllinga monocephala Rottb. sedge No
Ludwigia octovalvis   (Onagraceae) Jussiaea erecta sensu various authors.; Jussiaea suffruticosa L. herb No
Malvaviscus arboreus   (Malvaceae)   shrub No
Mangifera indica   (Anacardiaceae)   tree No
Mirabilis jalapa   (Nyctaginaceae)   herb No
Muntingia calabura   (Muntinginaceae)   tree No
Nerium oleander   (Apocynaceae) Nerium indicum Mill. shrub No
Nicotiana tabacum   (Solanaceae)   herb No
Ocimum basilicum   (Lamiaceae)   herb No
Paspalum conjugatum   (Poaceae)   grass No
Paspalum vaginatum   (Poaceae) Palspalum distichum sensu auct. non L. grass No
Pedilanthus tithymaloides   (Euphorbiaceae) Euphorbia tithymaloides L. herb No
Pentas lanceolata   (Rubiaceae) Mussaenda luteola Delile; Ophiorrhiza lanceolata Forssk. herb No
Phyllanthus amarus   (Phyllanthaceae) Phyllanthus niruri sensu various Pacific botanists. herb No
Physalis angulata   (Solanaceae) Physalis lanceifolia Nees herb No
Pilea microphylla   (Urticaceae)   herb No
Pluchea carolinensis   (Asteraceae) Conyza carolinensis Jacq.; Pluchea symphytifolia auct. shrub No
Pluchea indica   (Asteraceae)   shrub No
Pseuderanthemum carruthersii   (Acanthaceae) Pseuderanthemum atropurpureum (W. Bull) Radlk.; Pseuderanthemum reticulatum Radlk. shrub No
Psidium guajava   (Myrtaceae)   tree No
Sansevieria trifasciata   (Asparagaceae)   herb No
Sida rhombifolia   (Malvaceae) Sida microphylla Cav. shrub No
Solanum americanum   (Solanaceae) Solanum nigrum var. americanum (Mill.) O.E. Schulz herb No
Solanum lycopersicum   (Solanaceae) Lycopersicon esculentum Mill.; Lycopersicon lycopersicum (L.) Karst. herb No
Solenostemon scutellarioides   (Lamiaceae) Coleus blumei Benth.; Coleus scutellarioides (L.) Benth.; Ocimum scutellarioides (L.); Plectranthus scutellarioides(L.) R. Br. herb No
Spathodea campanulata   (Bignoniaceae)   tree No
Spermacoce remota   (Rubiaceae) Borreria laevis sensu various authors.; Spermacoce assurgens Ruiz & Pav. herb No
Sporobolus indicus   (Poaceae) Agrostis indica L.; Axonopus poiretii Roem. & Schult.; Sporobolus fertilis (Steud.) Clayton [= Sporobolus indicus var. major]; Sporobolus poiretii (Roem. & Schult.) Hitchc. grass No
Stachytarpheta cayennensis   (Verbenaceae) Stachytarpheta dichotoma (Ruiz & Pav.) Vahl.; Stachytarpheta urticaefolia (Salisb.) Sims; Stachytarpheta urticifolia (Salisb.) Sims herb No
Syngonium angustatum   (Araceae)   vine No
Tagetes patula   (Asteraceae) Tagetes lunulata Ortega herb No
Talinum paniculatum   (Portulacaceae) Portulaca paniculatum Jacq. herb No
Tradescantia spathacea   (Commelinaceae) Rhoeo discolor Hance ex Walp.; Rhoeo spathacea (Sw.) Stearn; Tradescantia discolor L'Hér. herb No
Tribulus cistoides   (Zygophyllaceae)   herb No
Urochloa glumaris   (Poaceae) Brachiaria paspaloides (Presl) Hubbard; Panicum glumare Trin.; Urochloa paspaloides Presl grass No
Xanthosoma sagittifolium   (Araceae) Arum sagittifolium L.; Caladium sagittifolium (L.) Vent. herb No

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This page was last regenerated on 24AUG2011.