This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur in the Bougainville Islands. 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? |
| Abelmoschus moschatus (Malvaceae) | Abelmoschus sagittifolius (Kurz) Merr. [=Abelmoschus moschatus subsp. tuberosus]; Hibiscus abelmoschus L.; Hibiscus sagittifolius Kurz [=Abelmoschus moschatus subsp. tuberosus] | herb | No |
| Adenanthera pavonina (Fabaceae) | tree | No | |
| Ageratum conyzoides (Asteraceae) | herb | No | |
| Allophylus cobbe (Sapindaceae) | Rhus cobbe L. | tree | No |
| Alpinia purpurata (Zingiberaceae) | herb | No | |
| Alstonia macrophylla (Apocynaceae) | tree | No | |
| Alternanthera sessilis (Amaranthaceae) | Alternanthera nodiflora R. Br. | herb | No |
| Asclepias curassavica (Apocynaceae) | herb | No | |
| Axonopus compressus (Poaceae) | grass | No | |
| Bambusa spp. (Poaceae) | tree | No | |
| Bischofia javanica (Phyllanthaceae) | tree | No | |
| Bixa orellana (Bixaceae) | shrub | No | |
| Caesalpinia bonduc (Fabaceae) | vine | No | |
| Calamus spp. (Arecaceae) | vine | No | |
| Cananga odorata (Annonaceae) | tree | No | |
| Casuarina equisetifolia (Casuarinaceae) | Casuarina litorea L. var. litorea; Casuarina littorea Rumph. | tree | No |
| Centella asiatica (Apiaceae) | Hydrocotyle asiatica L. | herb | No |
| Ceratophyllum demersum (Ceratophyllaceae) | aquatic herb | No | |
| Chamaesyce hirta (Euphorbiaceae) | Euphorbia hirta L. | herb | No |
| Chamaesyce prostrata (Euphorbiaceae) | Euphorbia prostrata Aiton | herb | No |
| Cheilocostus speciosus (Costaceae) | Banksea speciosa J. Koenig; Costus sericeus Bl.; Costus speciosus (J. Koenig) Sm. | herb | No |
| Clerodendrum buchananii var. fallax (Lamiaceae) | Clerodendrum speciosissimum van Geert ex Morren (although there is disagreement as to whether or not these species are synonymous per Smith, 1985). | shrub | No |
| Clidemia hirta (Melastomataceae) | shrub | No | |
| Coix lacryma-jobi (Poaceae) | grass | No | |
| Crotalaria pallida (Fabaceae) | Crotalaria mucronata Desv.; Crotalaria striata DC. | shrub | 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) | Mariscus cyperinus (Retz.) Vahl | sedge | No |
| Cyperus cyperoides (Cyperaceae) | Mariscus sumatrensis (Retz.) J. Raynal | sedge | No |
| Cyrtococcum oxyphyllum (Poaceae) | grass | No | |
| Cyrtococcum patens (Poaceae) | grass | No | |
| Desmodium gangeticum (Fabaceae) | herb | No | |
| Desmodium triflorum (Fabaceae) | herb | No | |
| Drymaria cordata (Caryophyllaceae) | herb | No | |
| Eclipta prostrata (Asteraceae) | Eclipta alba (L.) Hassk.; Verbesina alba L. | herb | No |
| Eleusine indica (Poaceae) | grass | No | |
| Emilia sonchifolia (Asteraceae) | Emilia javanica (Burm. f.) C. B. Rob. | herb | No |
| Eragrostis amabilis (Poaceae) | Eragrostis tenella (L.) P. Beauv. ex Roem. & Schult. | grass | No |
| Eragrostis unioloides (Poaceae) | grass | No | |
| Erechtites valerianifolia (Asteraceae) | Erechtites valerianifolius (Link ex Spreng.) DC.; Senecio valerianifolia Wolf | herb | No |
| Falcataria moluccana (Fabaceae) | Adenanthera falcataria L.; Albizia falcataria (L.) Fosb.; Albizia moluccana Miq.; Paraserianthes falcataria (L.) I. Nielsen | tree | No |
| Ficus benjamina (Moraceae) | tree | No | |
| Fleurya interrupta (Urticaceae) | Laportea interrupta (L.) Chew | herb | No |
| Heliconia spp. (Heliconiaceae) | herb | No | |
| Hemigraphis reptans (Acanthaceae) | herb | No | |
| Hyptis rhomboidea (Lamiaceae) | Hyptis capitata var. mexicana Briq.; Hyptis capitata var. pilosa Briq.; Hyptis decurrens (Blanco) Epling | herb | No |
| Imperata cylindrica (Poaceae) | Imperata arundinacea Cyr. | grass | 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 |
| Lindernia antipoda (Linderniaceae) | herb | No | |
| Lindernia crustacea (Linderniaceae) | herb | No | |
| Ludwigia octovalvis (Onagraceae) | Jussiaea erecta sensu various authors.; Jussiaea suffruticosa L. | herb | No |
| Luffa aegyptiaca (Cucurbitaceae) | Luffa cylindrica (L.) M. Roemer | vine | No |
| Melochia umbellata (Malvaceae) | Melochia compacta Hochr.; Melochia indica A. Gray | shrub | No |
| Mikania cordata (Asteraceae) | Eupatorium cordatum Burm. f. | vine | No |
| Mikania micrantha (Asteraceae) | vine | No | |
| Murdannia nudiflora (Commelinaceae) | Aneilema nudiflorum (L.) R. Br.; Commelina nudiflora L. | herb | No |
| Ocimum basilicum (Lamiaceae) | herb | No | |
| Oxalis corniculata (Oxalidaceae) | Oxalis repens Thunb. | herb | No |
| Paspalum conjugatum (Poaceae) | grass | No | |
| Paspalum scrobiculatum (Poaceae) | Paspalum cartilagineum Presl.?; Paspalum orbiculare G. Forst. | grass | No |
| Passiflora foetida (Passifloraceae) | vine | No | |
| Peperomia pellucida (Piperaceae) | herb | No | |
| Persicaria chinensis (Polygonaceae) | Polygonum chinense L. | herb | No |
| Phyllanthus urinaria (Phyllanthaceae) | herb | No | |
| Pistia stratiotes (Araceae) | aquatic herb | No | |
| Polygala paniculata (Polygalaceae) | herb | No | |
| Polygonum minus (Polygonaceae) | Persicaria minor (Huds.) Opiz | herb | No |
| Portulaca oleracea (Portulacaceae) | herb | No | |
| Pterocarpus indicus (Fabaceae) | tree | No | |
| Pueraria montana var. lobata (Fabaceae) | Dolichos lobatusWilld.; Pueraria lobata (Willd.) Ohwi; Pueraria thunbergiana(Sieb. & Zucc.) Benth.; Pueraria triloba (Houtt.) T. Makino | vine | No |
| Rubus moluccanus (Rosaceae) | shrub | No | |
| Rubus rosifolius (Rosaceae) | shrub | No | |
| Setaria palmifolia (Poaceae) | Panicum palmaefolium Koenig | grass | No |
| Sida rhombifolia (Malvaceae) | Sida microphylla Cav. | shrub | No |
| Solanum mammosum (Solanaceae) | shrub | No | |
| Solenostemon scutellarioides (Lamiaceae) | Coleus blumei Benth.; Coleus scutellarioides (L.) Benth.; Ocimum scutellarioides (L.); Plectranthus scutellarioides(L.) R. Br. | herb | No |
| Stachytarpheta jamaicensis (Verbenaceae) | herb | No | |
| Synedrella nodiflora (Asteraceae) | herb | No | |
| Syzygium malaccense (Myrtaceae) | Caryophyllus malaccensis (L.) Stokes; Eugenia malaccensis L. | tree | No |
| Timonius timon (Rubiaceae) | tree | No | |
| Tradescantia zebrina (Commelinaceae) | Zebrina pendula Schnitzl. | herb | No |
| Trema orientalis (Cannabaceae) | Trema cannabina Lour.; Trema cannabinum Lour.; Trema orientale (L.) Blume; Trema tomentosum (Roxb.) H. Hara | tree | No |
| Urena lobata (Malvaceae) | Urena sinuata L. | shrub | No |
| Youngia japonica (Asteraceae) | Crepis japonica Benth.; Youngia lyrata Cassini | herb | No |