This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur on Marcus 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? |
| Bryophyllum pinnatum (Crassulaceae) | Kalanchoë pinnata Pers. | succulent | No |
| Caesalpinia bonduc (Fabaceae) | vine | No | |
| Cenchrus echinatus (Poaceae) | grass | No | |
| Chamaesyce hirta (Euphorbiaceae) | Euphorbia hirta L. | herb | No |
| Chamaesyce prostrata (Euphorbiaceae) | Euphorbia prostrata Aiton | herb | No |
| Conyza bonariensis (Asteraceae) | Erigeron bonariense L.; Erigeron floribundus Schultz-Bip. | herb | No |
| Dactyloctenium aegyptium (Poaceae) | Eleusine aegyptiaca (L.) Desf. | grass | No |
| Digitaria ciliaris (Poaceae) | Digitaria adscendens (Kunth) Henrard | grass | No |
| Eleusine indica (Poaceae) | grass | No | |
| Malvastrum coromandelianum (Malvaceae) | Malva coromandeliana L.; Malvastrum tricuspidatum A. Gray | herb | No |
| Nicotiana tabacum (Solanaceae) | herb | No | |
| Pennisetum polystachion (Poaceae) | Cenchrus setosus SW.; Panicum polystachion L.; Pennisetum polystachyon (L.) Schultes; Pennisetum setosum (Sw.) L. Rich. | grass | No |
| Portulaca oleracea (Portulacaceae) | herb | No | |
| Setaria pumila (Poaceae) | Setaria glauca auct. [= Setaria pumila subsp. pumila]; Setaria lutescens (Stuntz) F. T. Hubb. [= Setaria pumila subsp. pumila]; Setaria pallidefusca (Schumach.) Stapf & C. E. Hubb. [= Setaria pumila subsp. pallidefusca] | grass | No |
| Sonchus oleraceus (Asteraceae) | Sonchus asper sensu various authors. | herb | No |