Plant Threats to Pacific Ecosystems

PIER plant species present on Ngerchong Island 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 on Ngerchong Island. 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?
Bidens alba   (Asteraceae) Bidens pilosa L. var. radiata Shultz-Bip.; Coreopsis alba L. herb No
Clerodendrum speciosissimum   (Lamiaceae) Clerodendrum blumeanum Schauer; Clerodendrum buchananii var. fallax (Roxburgh) Walpers; Clerodendrum fallax Lindl. shrub No
Conyza canadensis   (Asteraceae) Erigeron canadensis L. herb No
Crinum asiaticum   (Amaryllidaceae) Crinum amabile Donn ex Ker Gawl. herb No
Cyperus cyperinus   (Cyperaceae) Kyllinga cyperina Retz.; Mariscus cyperinus (Retz.) Vahl sedge No
Digitaria ciliaris   (Poaceae) Digitaria adscendens (Kunth) Henrard grass No
Eragrostis amabilis   (Poaceae) Eragrostis plumosa (Retz.) Link; Eragrostis tenella (L.) P. Beauv. ex Roem. & Schult.; Poa tenella L. grass No
Euphorbia hirta   (Euphorbiaceae) Chamaesyce hirta (L.) Millsp.; Euphorbia pilulifera L. herb No
Ficus benjamina   (Moraceae) Ficus nitida Thunb. tree No
Ficus microcarpa   (Moraceae)   tree No
Hippobroma longiflora   (Campanulaceae) Isotoma longiflora (L.) C. Presl; Laurentia longiflora (L.) Endl.; Lobelia longiflora L. herb No
Lepidium virginicum   (Brassicaceae)   herb No
Leucaena leucocephala   (Fabaceae) Acacia glauca Willd.; Leucaena glauca auct.; Mimosa leucocephala Lam. tree No
Paspalum conjugatum   (Poaceae)   grass No
Phyllanthus amarus   (Phyllanthaceae) Phyllanthus niruri sensu various Pacific botanists herb No
Pilea microphylla   (Urticaceae)   herb No
Polygala paniculata   (Polygalaceae)   herb No
Psidium guajava   (Myrtaceae)   tree No
Sesbania grandiflora   (Fabaceae) Agati grandiflora Desv. tree No
Sida rhombifolia   (Malvaceae) Sida microphylla Cav. shrub No
Spermacoce ovalifolia   (Rubiaceae) Borreria ovalifolia M. Martens & Galeotti; Spermacoce ernstii Fosberg & D. Powell herb No
Spermacoce remota   (Rubiaceae) Borreria laevis sensu various authors; Spermacoce assurgens Ruiz & Pav. herb No
Sporobolus diander   (Poaceae) Sporobolus diandrus (Retz.) P. Beauv.; Sporobolus indicus (L.) R. Br. var. flaccidus (Roem. & Schult.) Veldkamp grass 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
Stenotaphrum secundatum   (Poaceae)   grass No
Tecoma stans   (Bignoniaceae) Bignonia stans L.; Stenolobium stans Seem. tree No
Timonius timon   (Rubiaceae)   tree No
Turnera ulmifolia   (Passifloraceae)   herb No

Need more info?  Have questions?  Comments?  Information to contribute?  Contact PIER! (pier@hear.org)

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This page was last regenerated on 26FEB2019.