Plant Threats to Pacific Ecosystems

PIER plant species present on Tol 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 Tol 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?
Abelmoschus moschatus   (Malvaceae) Abelmoschus sagittifolius (Kurz) Merr.; Hibiscus abelmoschus L.; Hibiscus sagittifolius Kurz herb No
Acacia auriculiformis   (Fabaceae)   tree No
Acacia confusa   (Fabaceae)   tree No
Ageratum conyzoides   (Asteraceae)   herb No
Annona muricata   (Annonaceae)   tree No
Asclepias curassavica   (Apocynaceae)   herb No
Asystasia gangetica   (Acanthaceae) Asystasia coromandeliana Nees; Justicia gangetica L.; Ruellia zeylanica J. Koenig ex Roxb. herb No
Bambusa spp.   (Poaceae)   tree-like grass No
Caesalpinia bonduc   (Fabaceae) Caesalpinia bonducella (L.) Fleming; Guilandina bonduc L. vine No
Caladium bicolor   (Araceae) Caladiumhortulanum Birdsey herb No
Cananga odorata   (Annonaceae) Canangium odoratum (Lam.) Baill. ex King; Uvaria odorata Lam. shrub/tree No
Canna indica   (Cannaceae) Canna cinea Mill.; Canna edulis Ker Gawl.; Canna limbata Roscoe; Canna lutea Mill. herb No
Casuarina equisetifolia   (Casuarinaceae) Casuarina litorea L. ex Fosberg & Sachet tree No
Ceiba pentandra   (Malvaceae) Bombax pentandrum L.; Ceiba casearia Medik.; Eriodendron anfractuosum DC. tree No
Cenchrus echinatus   (Poaceae)   grass No
Cenchrus polystachios   (Poaceae) Pennisetum polystachion (L.) Schult.; Pennisetum polystachyon (L.) Schultes grass No
Chromolaena odorata   (Asteraceae) Eupatorium odoratum L. shrub No
Chrysopogon aciculatus   (Poaceae) Andropogon acicularis Retz. ex Roem. & Schult.; Andropogon aciculatus Retz.; Rhaphis acicularis (Retz. ex Roem. & Schult.) Desv.; Rhaphis aciculata (Retz.) Honda 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
Clerodendrum quadriloculare   (Lamiaceae) Ligustrum quadriloculare Blanco shrub No
Colocasia esculenta   (Araceae) Arum esculentum L.; Caladium esculentum (L.) Vent.; Colocasia antiquorum Schott herb No
Crotalaria pallida   (Fabaceae) Crotalaria brownei Bertero ex DC.; Crotalaria mucronata Desv.; Crotalaria striata DC. shrub 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
Cyperus cyperinus   (Cyperaceae) Kyllinga cyperina Retz.; Mariscus cyperinus (Retz.) Vahl sedge No
Cyrtococcum patens   (Poaceae) Cyrtococcum accrescens (Trin.) Stapf; Panicum patens L. grass No
Delonix regia   (Fabaceae) Poinciana regia Bojer tree No
Desmanthus pernambucanus   (Fabaceae) Mimosa pernambucana L. herb No
Digitaria ciliaris   (Poaceae) Digitaria adscendens (Kunth) Henrard grass No
Dioscorea bulbifera   (Dioscoreaceae) Dioscorea latifolia Benth. vine No
Eleusine indica   (Poaceae) Cynosurus indicus L.; Eleusine japonica Steud. grass No
Emilia sonchifolia   (Asteraceae) Emilia javanica (Burm. f.) C. B. Rob. herb No
Ficus microcarpa   (Moraceae)   tree No
Fimbristylis littoralis   (Cyperaceae) Fimbristylis miliacea auct. sedge No
Flacourtia rukam   (Salicaceae) Flacourtia euphlebia Merr. tree No
Gossypium barbadense   (Malvaceae) Gossypium brasiliense Macfad.; Gossypium peruvianum Cav. shrub No
Hedychium coronarium   (Zingiberaceae)   herb No
Jasminum sambac   (Oleaceae) Nyctanthes sambac L.; Nyctanthes undulata L. vine No
Lantana camara   (Verbenaceae)   shrub No
Leucaena leucocephala   (Fabaceae) Acacia glauca Willd.; Leucaena glauca auct.; Mimosa leucocephala Lam. tree No
Lindernia antipoda   (Linderniaceae) Ruellia antipoda L. herb No
Ludwigia octovalvis   (Onagraceae) Jussiaea erecta sensu various authors; Jussiaea suffruticosa L. herb No
Luffa aegyptiaca   (Cucurbitaceae) Luffa cylindrica M. Roem.; Luffa pentandra Roxb.; Momordica cylindrica L.; Momordica luffa L. vine No
Merremia peltata   (Convolvulaceae) Convolvulus peltatus L.; Ipomoea nymphaeifolia Blume; Ipomoea peltata (L.) Choisy vine No
Paspalum conjugatum   (Poaceae)   grass No
Passiflora foetida   (Passifloraceae)   vine No
Peperomia pellucida   (Piperaceae)   herb No
Pithecellobium dulce   (Fabaceae) Mimosa dulcis Roxb. tree No
Psidium guajava   (Myrtaceae)   tree No
Ruellia blechum   (Acanthaceae) Barleria pyramidata Lam.; Blechum brownei Juss.; Blechum pyramidatum (Lam.) Urb.; Ruellia blechum f. puberulum herb No
Senna alata   (Fabaceae) Cassia alata L. shrub No
Sida acuta   (Malvaceae)   herb No
Sphagneticola trilobata   (Asteraceae) Thelechitonia trilobata (L.) H. Rob. & Cautrec.; Wedelia trilobata (L.) Hitchc. herb No
Syngonium angustatum   (Araceae)   vine No
Syzygium malaccense   (Myrtaceae) Caryophyllus malaccensis (L.) Stokes; Eugenia malaccensis L. tree No
Turnera ulmifolia   (Passifloraceae)   herb No
Urena lobata   (Malvaceae) Urena sinuata 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.