This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur on Alphonse 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? |
| Acalypha indica (Euphorbiaceae) | herb | No | |
| Achyranthes aspera (Amaranthaceae) | Achyranthes canescens R. Br. | herb | No |
| Adenanthera pavonina (Fabaceae) | tree | No | |
| Agave sisalana (Asparagaceae) | Agave rigida var.sisalana Engelmann | succulent | No |
| Alocasia macrorrhizos (Araceae) | Alocasia indica Schott; Alocasia plumbea Van Houtte; Arum indicum Lour.; Arum macrorrhizon L.; Colocasia indica (Lour.) Kunth | herb | No |
| Bryophyllum pinnatum (Crassulaceae) | Kalanchoë pinnata Pers. | succulent | 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 |
| 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 ligularis (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 |
| Eleusine indica (Poaceae) | grass | No | |
| Euphorbia hirta (Euphorbiaceae) | Chamaesyce hirta (L.) Millsp. | herb | No |
| Euphorbia prostrata (Euphorbiaceae) | Chamaesyce prostrata (Aiton) Small | herb | No |
| Furcraea foetida (Asparagaceae) | Agave gigantea D. Dietr.; Furcraea gigantea Vent. | succulent | No |
| Ipomoea violacea (Convolvulaceae) | Convolvulus tuba Schlechtend.; Ipomoea macrantha Roem. & Schult.; Ipomoea tuba (Schlechtend.) G. Don | vine | No |
| Kyllinga nemoralis (Cyperaceae) | Cyperus kyllingia Endl.; Kyllinga cephalotes (Jacq.) Druce; Kyllinga monocephala Rottb. | sedge | No |
| Kyllinga polyphylla (Cyperaceae) | Cyperus aromaticus (Ridl.) Mattf. & Kuek.; Cyperus aromaticus (Ridl.) Mattf. & Kukenth.; Kyllinga aromatica Ridley | sedge | No |
| Moringa oleifera (Moringaceae) | Moringa pterygospera C. F. Gaertn. | tree | No |
| Passiflora suberosa (Passifloraceae) | vine | No | |
| Phyla nodiflora (Verbenaceae) | Lippia nodiflora (L.) Michx.; Lippia repens Spreng. | herb | No |
| Phyllanthus amarus (Phyllanthaceae) | Phyllanthus niruri sensu various Pacific botanists. | herb | No |
| Pilea microphylla (Urticaceae) | herb | No | |
| Ricinus communis (Euphorbiaceae) | shrub | No | |
| Senna occidentalis (Fabaceae) | Cassia occidentalis L. | shrub | No |
| Stachytarpheta cayennensis (Verbenaceae) | Stachytarpheta dichotoma (Ruiz & Pav.) Vahl.; Stachytarpheta urticaefolia (Salisb.) Sims; Stachytarpheta urticifolia (Salisb.) Sims | herb | No |
| Stachytarpheta jamaicensis (Verbenaceae) | herb | No | |
| Striga asiatica (Orobanchaceae) | Buchnera asiatica L.; Striga lutea Lour. | herb | No |
| Triumfetta rhomboidea (Malvaceae) | Triamfetta bartramia L. | shrub | No |
| Turnera ulmifolia (Passifloraceae) | herb | No | |
| Urochloa subquadripara (Poaceae) | Brachiaria subquadripara (Trin.) Hitchc.; Panicum subquadriparum Trin.; Urochloa distachya (L.) T. Q. Nguyen | grass | No |