This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur in Tokelau. 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? |
| Cenchrus echinatus (Poaceae) | grass | No | |
| Clerodendrum speciosissimum (Lamiaceae) | Clerodendrum blumeanum Schauer; Clerodendrum buchananii var. fallax (Roxburgh) Walpers; Clerodendrum fallax Lindl. | shrub | No |
| Cynodon dactylon (Poaceae) | grass | No | |
| Cyperus rotundus (Cyperaceae) | Chlorocyperus rotundus (L.) Palla; Cyperus tetrastachyos Desf. | sedge | No |
| Eleusine indica (Poaceae) | Cynosurus indicus L.; Eleusine japonica Steud. | grass | No |
| Eleutheranthera ruderalis (Asteraceae) | Melampodium ruderale Sw. | herb | No |
| Euphorbia hirta (Euphorbiaceae) | Chamaesyce hirta (L.) Millsp.; Euphorbia pilulifera L. | herb | 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 polyphylla (Cyperaceae) | Cyperus aromaticus (Ridl.) Mattf. & Kük.; Kyllinga aromatica Ridley | sedge | No |
| Lepidium virginicum (Brassicaceae) | herb | No | |
| Ludwigia octovalvis (Onagraceae) | Jussiaea erecta sensu various authors; Jussiaea suffruticosa L. | herb | No |
| Mikania micrantha (Asteraceae) | vine | No | |
| Mimosa pudica (Fabaceae) | herb | No | |
| Paspalum conjugatum (Poaceae) | grass | No | |
| Pennisetum purpureum (Poaceae) | Cenchrus purpureus (Schumach.) Morrone; Pennisetum benthamii Steud. | grass | No |
| Portulaca oleracea (Portulacaceae) | herb | No | |
| Sida rhombifolia (Malvaceae) | Sida microphylla Cav. | shrub | No |
| Sphagneticola trilobata (Asteraceae) | Thelechitonia trilobata (L.) H. Rob. & Cautrec.; Wedelia trilobata (L.) Hitchc. | herb | No |
| Stachytarpheta cayennensis (Verbenaceae) | Stachytarpheta dichotoma (Ruiz & Pav.) Vahl.; Stachytarpheta urticaefolia (Salisb.) Sims; Stachytarpheta urticifolia (Salisb.) Sims | herb | No |
| Synedrella nodiflora (Asteraceae) | herb | No | |
| Urochloa subquadripara (Poaceae) | Brachiaria subquadripara (Trin.) Hitchc.; Panicum subquadriparum Trin. | grass | No |