Plant Threats to Pacific Ecosystems

PIER plant species present on Eiao 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 Eiao 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?
Abrus precatorius   (Fabaceae) Glycine abrus L. vine No
Abutilon hirtum   (Malvaceae) Abutilon graveolens (Roxb. ex Hornem.) Wight & Arn.; Sida graveolens Roxb. ex Hornem. herb No
Ageratum conyzoides   (Asteraceae)   herb No
Aleurites moluccana   (Euphorbiaceae) Aleurites remyi Sherff; Aleurites trilobus J. R. Forst. & G. Forst.; Jatropha moluccana L. tree No
Annona squamosa   (Annonaceae) Annona asiatica L. tree No
Asclepias curassavica   (Apocynaceae)   herb No
Bidens pilosa   (Asteraceae)   herb No
Casuarina equisetifolia   (Casuarinaceae) Casuarina litorea L. ex Fosberg & Sachet tree No
Cenchrus echinatus   (Poaceae)   grass No
Citrullus lanatus   (Cucurbitaceae) Citrullus aedulis Pangalo; Citrullus vulgaris Schrad. vine No
Citrus aurantiifolia   (Rutaceae) Citrus acida Roxb.; Citrus lima Lunan; Limonia aurantiifolia Christm. tree No
Conyza bonariensis   (Asteraceae) Erigeron bonariensis L.; Erigeron crispus Pourr. herb No
Cucumis anguria   (Cucurbitaceae) Cucumis longipes Hook. f. herb 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
Dactyloctenium aegyptium   (Poaceae) Cynosurus aegyptius L.; Eleusine aegyptiaca (L.) Desf. grass No
Eleusine indica   (Poaceae) Cynosurus indicus L.; Eleusine japonica Steud. grass No
Emilia fosbergii   (Asteraceae)   herb No
Emilia sonchifolia   (Asteraceae) Emilia javanica (Burm. f.) C. B. Rob. herb 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
Fleurya interrupta   (Urticaceae) Laportea interrupta (L.) Chew; Urtica interrupta L. herb No
Ipomoea batatas   (Convolvulaceae) Convolvulus batatas L. 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 monocephala Rottb. sedge No
Leucaena leucocephala   (Fabaceae) Acacia glauca Willd.; Leucaena glauca auct.; Mimosa leucocephala Lam. tree No
Ludwigia octovalvis   (Onagraceae) Jussiaea erecta sensu various authors; Jussiaea suffruticosa L. herb No
Malvastrum coromandelianum   (Malvaceae) Malva coromandeliana L.; Malvastrum tricuspidatum A. Gray herb No
Muntingia calabura   (Muntinginaceae)   tree No
Nicotiana tabacum   (Solanaceae)   herb No
Ocimum basilicum   (Lamiaceae)   herb No
Ocimum gratissimum   (Lamiaceae)   herb No
Oxalis corniculata   (Oxalidaceae) Oxalis repens Thunb. herb No
Passiflora foetida   (Passifloraceae)   vine No
Phyllanthus amarus   (Phyllanthaceae) Phyllanthus niruri sensu various Pacific botanists herb No
Phyllanthus virgatus   (Phyllanthaceae) Phyllanthus simplex Retz. herb No
Pityrogramma calomelanos   (Pteridaceae) Acrostichum calomelanos L.; Gymnogramma calomelanos var. aureoflava Hook.; Gymnogramma ochracea C. Presl; Pityrogramma austroamericana Domin fern No
Plectranthus scutellarioides   (Lamiaceae) Coleus blumei Benth.; Coleus scutellarioides (L.) Benth.; Ocimum scutellarioides (L.); Solenostemon scutellarioides (L.) Codd herb No
Psidium guajava   (Myrtaceae)   tree No
Rhynchosia minima   (Fabaceae)   herb No
Sapindus saponaria   (Sapindaceae)   tree No
Senna occidentalis   (Fabaceae) Cassia occidentalis L. shrub No
Sida acuta   (Malvaceae)   herb No
Sida rhombifolia   (Malvaceae) Sida microphylla Cav. shrub No
Sigesbeckia orientalis   (Asteraceae) Siegesbeckia orientalis L. herb No
Sonchus oleraceus   (Asteraceae) Sonchus asper sensu various authors herb No
Synedrella nodiflora   (Asteraceae)   herb No
Syzygium cumini   (Myrtaceae) Eugenia cumini (L.) Druce tree No
Tribulus cistoides   (Zygophyllaceae)   herb No
Triumfetta rhomboidea   (Malvaceae) Triamfetta bartramia L. shrub No
Urochloa reptans   (Poaceae) Brachiaria reptans (L.) C. A. Gardner & C. E. Hubb.; Panicum reptans L. grass No
Vachellia farnesiana   (Fabaceae) Mimosa farnesiana L. shrub No
Waltheria indica   (Malvaceae) Waltheria americana L. shrub 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.