This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur in the Rock Islands (Chelbacheb). 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? |
| Achyranthes aspera (Amaranthaceae) | herb | No | |
| Ageratum conyzoides (Asteraceae) | herb | No | |
| Alocasia macrorrhizos (Araceae) | Alocasia indica (Lour.) Spach; Alocasia plumbea Van Houtte; Arum indicum Lour.; Arum macrorrhizon L.; Colocasia indica (Lour.) Kunth | herb | No |
| Alysicarpus vaginalis (Fabaceae) | Alysicarpus nummularifolius auct.; Hedysarum vaginale L. | herb | No |
| Annona muricata (Annonaceae) | tree | No | |
| Averrhoa bilimbi (Oxalidaceae) | tree | No | |
| Basella alba (Basellaceae) | Basella cordifolia Lam.; Basella rubra L. | herb | No |
| Bidens alba (Asteraceae) | Bidens pilosa L. var. radiata Shultz-Bip.; Coreopsis alba L. | herb | No |
| Bothriochloa bladhii (Poaceae) | Andropogon bladhii Retz.; Andropogon intermediusR. Br.; Bothriochloa caucasica (Trin.) C.E. Hubbard; Bothriochloa glabra (Roxb.) A. Camus; Bothriochloa intermedia (R. Br.) A. Camus | grass | No |
| Caesalpinia bonduc (Fabaceae) | Caesalpinia bonducella (L.) Fleming; Guilandina bonduc L. | vine | No |
| Casuarina equisetifolia (Casuarinaceae) | Casuarina litorea L. ex Fosberg & Sachet | tree | No |
| Cheilocostus speciosus (Costaceae) | Banksea speciosa J. Koenig; Costus sericeus Blume; Costus speciosus (J. Koenig) Sm.; Costus speciosus var. sericeus (Blume) K. Schum. | herb | No |
| Chromolaena odorata (Asteraceae) | Eupatorium odoratum L. | shrub | No |
| Cinnamomum verum (Lauraceae) | Cinnamomum zeylanicum Bl. | tree | 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 |
| Crassocephalum crepidioides (Asteraceae) | Gynura crepidioides Benth. | herb | No |
| Crinum asiaticum (Amaryllidaceae) | Crinum amabile Donn ex Ker Gawl. | 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 |
| Cyperus cyperinus (Cyperaceae) | Kyllinga cyperina Retz.; Mariscus cyperinus (Retz.) Vahl | sedge | No |
| Digitaria ciliaris (Poaceae) | Digitaria adscendens (Kunth) Henrard | grass | No |
| Dioscorea bulbifera (Dioscoreaceae) | Dioscorea latifolia Benth. | vine | No |
| Echinochloa colona (Poaceae) | Panicum colonum L. | grass | No |
| Eleusine indica (Poaceae) | Cynosurus indicus L.; Eleusine japonica Steud. | grass | 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 |
| Erigeron bellioides (Asteraceae) | herb | No | |
| Euphorbia hirta (Euphorbiaceae) | Chamaesyce hirta (L.) Millsp.; Euphorbia pilulifera L. | herb | No |
| Euphorbia prostrata (Euphorbiaceae) | Chamaesyce prostrata (Aiton) Small | herb | No |
| Euphorbia thymifolia (Euphorbiaceae) | Chamaesyce thymifolia (L.) Millsp.; Euphorbia microphylla Lam. | herb | No |
| Ficus benjamina (Moraceae) | Ficus nitida Thunb. | tree | No |
| Ficus microcarpa (Moraceae) | tree | No | |
| Flacourtia rukam (Salicaceae) | Flacourtia euphlebia Merr. | tree | No |
| Heliotropium foertherianum (Boraginaceae) | Argusia argentea (L. f.) Heine; Messerschmidia argentea (L. f.) I.M. Johnst.; Tournefortia argentea Linnaeus filius | shrub/tree | No |
| Hemigraphis reptans (Acanthaceae) | Strobilanthes reptans (G. Forst.) Moylan ex Y.F. Deng & J.R.I. Wood | herb | No |
| Hippobroma longiflora (Campanulaceae) | Isotoma longiflora (L.) C. Presl; Laurentia longiflora (L.) Endl.; Lobelia longiflora L. | herb | No |
| Imperata conferta (Poaceae) | Imperata exaltata auct.; Saccharum confertum J. Presl | grass | No |
| Ipomoea violacea (Convolvulaceae) | Convolvulus tuba Schlechtend.; Ipomoea macrantha Roem. & Schult.; Ipomoea tuba (Schlechtend.) G. Don | vine | No |
| Ischaemum polystachyum (Poaceae) | Ischaemum digitatum Brongn. | grass | No |
| Lepidium virginicum (Brassicaceae) | herb | No | |
| Leucaena leucocephala (Fabaceae) | Acacia glauca Willd.; Leucaena glauca auct.; Mimosa leucocephala Lam. | tree | No |
| Lygodium microphyllum (Lygodiaceae) | Lygodium scandens auct.; Ugena microphylla Cav. | fern | No |
| Millettia pinnata (Fabaceae) | Cytisus pinnatus L.; Derris indica (Lam.) Bennet; Galedupa indica Lam.; Galedupa pinnata (L.) Taub.; Pongamia glabra Ventenat; Pongamia mitis Kurz; Pongamia pinnata (Linnaeus) Pierre | tree | No |
| Nypa fruticans (Arecaceae) | Nipa fruticans Thunb. | shrub | No |
| Paspalum conjugatum (Poaceae) | grass | No | |
| Paspalum scrobiculatum (Poaceae) | Paspalum cartilagineum Presl.; Paspalum orbiculare G. Forst. | 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 |
| Stachytarpheta cayennensis (Verbenaceae) | Stachytarpheta dichotoma (Ruiz & Pav.) Vahl.; Stachytarpheta urticaefolia (Salisb.) Sims; Stachytarpheta urticifolia (Salisb.) Sims | herb | No |
| Stachytarpheta jamaicensis (Verbenaceae) | herb | No | |
| Stenotaphrum secundatum (Poaceae) | grass | No | |
| Suriana maritima (Surianaceae) | (no species-level synonyms found) | shrub/tree | No |
| Syzygium cumini (Myrtaceae) | Eugenia cumini (L.) Druce | tree | No |
| Tecoma stans (Bignoniaceae) | Bignonia stans L.; Stenolobium stans Seem. | tree | No |
| Timonius timon (Rubiaceae) | tree | No | |
| Turnera ulmifolia (Passifloraceae) | herb | No |