This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur on Arno Atoll. 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 |
Threat only at
high elevations? |
| Abelmoschus moschatus (Malvaceae) | Hibiscus abelmoschus L. | herb | No |
| Alocasia macrorrhizos (Araceae) | Arum macrorrhizon L., Alocasia indica Schott, Arum indicum Lour., Colocasia indica (Lour.) Kunth | herb | No |
| Alternanthera sessilis (Amaranthaceae) | Alternanthera nodiflora R. Br. | herb | No |
| Amaranthus viridis (Amaranthaceae) | Amaranthus gracilis Desf., nom. nud. | herb | No |
| Angelonia angustifolia (Scrophulariaceae) | herb | No | |
| Asclepias curassavica (Asclepiadaceae) | herb | No | |
| Asystasia gangetica (Acanthaceae) | Justicia gangetica L. | herb | No |
| Bidens alba (Asteraceae) | Bidens pilosa L. var. radiata Shultz-Bip. | herb | No |
| Bothriochloa bladhii (Poaceae) | Andropogon bladhii Retz., Andropogon intermedius R. Br., Bothriochloa caucasica (Trin.) C.E. Hubbard, Dichanthium bladhii (Retz.) Clayton | grass | No |
| Bryophyllum pinnatum (Crassulaceae) | Kalanchoë pinnata Pers. | succulent | No |
| Buchnera americana (Orobanchaceae) | Buchnera breviflora Pennell, Buchnera floridana Gandog. | herb | No |
| Caesalpinia pulcherrima (Fabaceae) | Poinciana pulcherrima L. | shrub | No |
| Canna indica (Cannaceae) | herb | No | |
| Capsicum frutescens (Solanaceae) | herb | 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 |
| Ceiba pentandra (Bombacaceae) | tree | No | |
| Cenchrus echinatus (Poaceae) | grass | No | |
| Centella asiatica (Apiaceae) | Hydrocotyle asiatica L. | herb | No |
| Chamaesyce hirta (Euphorbiaceae) | Euphorbia hirta L. | herb | No |
| Chamaesyce hypericifolia (Euphorbiaceae) | Euphorbia glomifera Millsp., Euphorbia hypericifoliaL. | herb | No |
| Chamaesyce prostrata (Euphorbiaceae) | Euphorbia prostrata Aiton | herb | No |
| Chamaesyce thymifolia (Euphorbiaceae) | Euphorbia rubicunda Steud., Euphorbia thymifolia L. | herb | No |
| Citrus aurantiifolia (Rutaceae) | tree | No | |
| Citrus limon (Rutaceae) | Citrus limonum Risso | tree | No |
| Colocasia esculenta (Araceae) | herb | No | |
| Conyza canadensis (Asteraceae) | Erigeron canadensis L. | herb | No |
| Crinum asiaticum (Liliaceae) | herb | No | |
| Cyperus compressus (Cyperaceae) | sedge | No | |
| Cyperus rotundus (Cyperaceae) | Cyperus purpuro-variegatus Boeckeler, Cyperus stoloniferum pallidus Boeckeler, Cyperus tetrastachyos Desf., Cyperus tuberosus Roxb, Chlorocyperus rotundus (L.) Palla | sedge | No |
| Dactyloctenium aegyptium (Poaceae) | Eleusine aegyptiaca (L.) Desf. | grass | No |
| Desmodium incanum (Fabaceae) | Desmodium canum Schinz & Thell., nom. illeg. | shrub | No |
| Desmodium triflorum (Fabaceae) | herb | No | |
| Digitaria ciliaris (Poaceae) | Digitaria adscendens (Kunth) Henrard | grass | No |
| Duranta erecta (Verbenaceae) | Duranta repens L. | shrub | No |
| Eichhornia crassipes (Pontederiaceae) | aquatic herb | No | |
| Eleocharis geniculata (Cyperaceae) | sedge | No | |
| Eleusine indica (Poaceae) | grass | No | |
| Epipremnum pinnatum cv. Aureum (Araceae) | Epipremnum aureum (Linden ex André) G. S. Bunting, Pothos aurea Linden ex André, Raphidophora aurea (Linden ex A.) Birdsey (also spelled Rhaphidophora), Scindapsus aureus (Linden ex André) Engl. | vine | No |
| Eragrostis amabilis (Poaceae) | Eragrostis tenella (L.) P. Beauv. ex Roem. & Schult. | grass | No |
| Eragrostis ciliaris (Poaceae) | Poa ciliaris L. | grass | No |
| Eragrostis scabriflora (Poaceae) | Eragrostis brownii sensu Fosberg et al. 1987; non (Kunth) Nees in H. & A. | grass | No |
| Euphorbia cyathophora (Euphorbiaceae) | herb | No | |
| Eustachys petraea (Poaceae) | Chloris petraea Swartz | grass | No |
| Ficus benjamina (Moraceae) | tree | No | |
| Gomphrena globosa (Amaranthaceae) | herb | No | |
| Gossypium barbadense (Malvaceae) | Gossypium peruvianum Cav., Gossypium brasiliense sensu Okabe non Macf. | shrub | No |
| Heliotropium procumbens (Boraginaceae) | herb | No | |
| Hemigraphis reptans (Acanthaceae) | herb | No | |
| Hippeastrum puniceum (Liliaceae) | herb | No | |
| Hippobroma longiflora (Campanulaceae) | Isotoma longiflora (L.) C. Presl, Laurentia longiflora (L.) Endl. | herb | No |
| Ipomoea batatas (Convolvulaceae) | vine | No | |
| Ipomoea violacea (Convolvulaceae) | Convolvulus tuba Schlechtend., Ipomoea macrantha Roem. & Schult., Ipomoea tuba (Schlechtend.) G. Don | vine | No |
| Ixora coccinea (Rubiaceae) | Ixora lutea Hutch. | shrub | No |
| Kyllinga brevifolia (Cyperaceae) | Cyperus brevifolius (Rottb.) Endl. ex Hassk. | sedge | No |
| Kyllinga nemoralis (Cyperaceae) | Cyperus kyllingia Endl., Kyllinga cephalotes (Jacq.) Druce, Kyllinga monocephala Rottb. | sedge | No |
| Lantana camara (Verbenaceae) | shrub | No | |
| Leucaena leucocephala (Fabaceae) | Leucaena glauca (L. ex Willd.) Benth. | tree | No |
| Ludwigia octovalvis (Onagraceae) | Jussiaea suffruticosa L., Jussiaea erecta sensu various authors. | herb | No |
| Lycopersicon esculentum (Solanaceae) | Lycopersicon lycopersicum (L.) Karst. | herb | No |
| Mangifera indica (Anacardiaceae) | tree | No | |
| Mirabilis jalapa (Nyctaginaceae) | herb | No | |
| Nerium oleander (Apocynaceae) | Nerium indicum Mill. | shrub | No |
| Oldenlandia corymbosa (Rubiaceae) | Hedyotis corymbosa (L.) Lam. | herb | No |
| Oplismenus compositus (Poaceae) | Panicum compositum L. | grass | No |
| Paspalum conjugatum (Poaceae) | grass | No | |
| Paspalum distichum (Poaceae) | Paspalum paspalodes (Michx.) Scribn. | grass | No |
| Paspalum setaceum (Poaceae) | grass | No | |
| Paspalum vaginatum (Poaceae) | Palspalum distichum sensu auct. non L. | grass | No |
| Phyla nodiflora (Verbenaceae) | Lippia nodiflora (L.) Michx., Lippia repens Spreng. | herb | No |
| Phyllanthus amarus (Euphorbiaceae) | Phyllanthus niruri sensu various Pacific botanists. | herb | No |
| Physalis angulata (Solanaceae) | Physalis lanceifolia Nees | herb | No |
| Pilea microphylla (Urticaceae) | herb | No | |
| Portulaca oleracea (Portulacaceae) | herb | No | |
| Pseuderanthemum carruthersii (Acanthaceae) | Pseuderanthemum atropurpureum (W. Bull) Radlk., Pseuderanthemum reticulatum Radlk. | shrub | No |
| Psidium guajava (Myrtaceae) | tree | No | |
| Senna surattensis (Fabaceae) | Cassia surattensis N.L. Burm | tree | No |
| Solanum americanum (Solanaceae) | herb | No | |
| Sonchus oleraceus (Asteraceae) | Sonchus asper sensu various authors. | herb | No |
| Spermacoce assurgens (Rubiaceae) | Borreria laevis sensu various authors. | herb | No |
| Spermacoce ovalifolia (Rubiaceae) | Borreria ovalifolia M. Martens & Galeotti, Spermacoce ernstii Fosberg & D. Powell | herb | No |
| Sphagneticola trilobata (Asteraceae) | Thelechitonia trilobata (L.) H. Rob. & Cautrec., Wedelia trilobata (L.) Hitchc. | herb | No |
| Stachytarpheta jamaicensis (Verbenaceae) | herb | No | |
| Syzygium malaccense (Myrtaceae) | Caryophyllus malaccensis (L.) Stokes, Eugenia malaccensis L. | tree | No |
| Tabebuia heterophylla (Bignoniaceae) | Tabebuia pallida auct. non (L.) Hemsley, Tabebuia pentaphylla (L.) Hemsley | tree | No |
| Tecoma stans (Bignoniaceae) | Bignonia stans L., Stenolobium stans Seem. | tree | No |
| Tradescantia spathacea (Commelinaceae) | Tradescantia discolor L'Hér., Rhoeo spathacea (Sw.) Stearn, Rhoeo discolor Hance ex Walp. | herb | No |
| Turnera ulmifolia (Turneraceae) | herb | No | |
| Urochloa mutica (Poaceae) | Brachiaria mutica (Forssk.) Stapf, Panicum muticum Forssk., Panicum purpurascens Raddi, Panicum barbinode Trin., Panicum guadeloupense Steudel, Brachiaria purpurascens Henr. | grass | No |
| Vernonia cinerea (Asteraceae) | Cyanthillium cinereum (L.) H. Rob. | herb | No |
| Xanthosoma sagittifolium (Araceae) | Arum sagittifolium L., Caladium sagittifolium (L.) Vent. | herb | No |
| Zoysia matrella (Poaceae) | Agrostis matrella L., Osterdamia matrella (L.) Kuntze, Zoysia pungens Willd. | grass | No |