Haw. Code R. § tit. 4, subtit. 6, ch. 68, List of Plant Species Designated as Noxious Weeds for Eradication or Control Purposes by the Hawaii Department Of Agriculture
Current through September, 2024
| Scientific Name | Common Name | Islands Free or Relatively Free |
| Acacia mearnsii | black wattle | Molokai |
| Acaena novae-zelandiae | New Zealand bur, piripiri | All islands |
| Acroptilon repens | Russian knapweed | All islands |
| Aeschynomene indica | Kat sola, Indian jointvetch | All islands |
| Ageratina adenophora | croftonweed, Maui pamakani | Hawaii, Kauai |
| Ageratina riparia | creeping croftonweed, Hamakua pamakani | Kauai |
| Allium vineale | wild garlic | All islands |
| Andropogon bicornis | West Indian Foxtail | Maui, Lanai, Molokai, Oahu, Kauai |
| Andropogon virginicus | broomsedge | Molokai, Lanai, Oahu, Kauai |
| Anredera cordifolia | Madeira vine | Maui |
| Ardisia elliptica | shoebutton ardisia | Maui, Molokai, Lanai, Oahu, Kauai |
| Bocconia frutescens | plume poppy | All islands |
| Cardaria pubescens | hairy whitetop | All islands |
| Cereus uruguayanus | spiny tree cactus, Peruvian apple | All islands |
| Chromolaena odorata | siamweed, bitterbush | All islands |
| Cirsium arvense | Canada thistle | All islands |
| Clidemia hirta var. hirta | Koster's curse, curse | Kauai, Lanai |
| Coccinia grandis | ivy gourd | Hawaii, Maui, Molokai, Lanai, Kauai |
| Convolvulus arvensis | field bindweed | All islands |
| Cortaderia jubata | All islands | |
| Cymbopogon refractus | barbwire grass | Lanai, Oahu |
| Cyperus esculentus | yellow nutsedge | Maui, Oahu, Lanai, Kauai, Molokai |
| Cytisus monspessulanus | French broom | All islands |
| Cytisus scoparius | Scotch broom | All islands |
| Dichrostachys nutans | marabu | All islands |
| Elephantopus mollis | elephantopus, elephant's foot | Maui, Oahu, Lanai |
| Elytrigia repens | quackgrass | All islands |
| Emex spinosa | spiny emex | Lanai, Kauai |
| Eriocereus martinii | moon cactus | All islands |
| Euphorbia esula | leafy spurge | All islands |
| Grevillea banksii | kahiliflower, Bank's grevillea | Lanai, Maui, Molokai |
| Halogeton glomeratus | halogeton | All islands |
| Hyptis pectinata | comb hyptis | Kauai, Molokai, Lanai, Oahu |
| Hyptis suaveolens | wild spikenard | All islands |
| Imperata cylindrica | cogon | All islands |
| Lagascea mollis | acuate | All islands |
| Lepidium latifolium | perennial pepperweed | All islands |
| Malachra alceifolia | malachra | All islands |
| Medinilla venosa | Hawaii, Lanai, Molokai, Oahu, Kauai | |
| Melastoma spp. | melastoma | All islands |
| Miconia spp. | miconia | All islands |
| Mikania micanthra | mile-a-minute | All islands |
| Mikania scandens | climbing hempweed | All islands |
| Mimosa invisa | giant sensitiveplan | All islands |
| Mimosa pigra | thorny sensitiveplan | All islands |
| Miscanthus floridulus | miscanthus, Japanese silvergrass | All islands |
| Montanoa hibiscifolia | tree daisy | Maui |
| Myrica faya | firetree, candleberry myrtle | Maui, Lanai, Molokai, Oahu |
| Oxyspora paniculata | Maui, Molokai, Lanai, Kauai | |
| Panicum repens | torpedograss | Maui, Molokai, Lanai, Oahu, Kauai |
| Passiflora mollissima | banana passionfruit, banana poka | Maui, Molokai, Lanai, Oahu, |
| Passiflora pulchella | wingleaf passionfruit | All islands |
| Pennisetum setaceum | fountaingrass | Maui, Molokai, Lanai, Oahu, Kauai |
| Piper aduncum | spiked pepper | All islands |
| Pittosporum undulatum | Victorian box | Maui, Oahu, Lanai, Kauai, Molokai |
| Prosopis juliflora | All islands | |
| Pueraria phaseoloides | tropical kudzu | All islands |
| Rhodomyrtus tomentosa | downy rosemyrtle | Maui, Molokai, Lanai, Oahu |
| Rubus argutus | prickly Florida blackberry | Lanai, Molokai |
| Rubus ellipticus var. obcordatus | yellow Himalayan raspberry | Maui, Molokai, Lanai, Oahu, Kauai |
| Rubus niveus | hill raspberry | Molokai, Lanai, Oahu, Kauai |
| Rubus sieboldii | Molucca raspberry | All islands |
| Salsola kali | Russian thistle | All islands |
| Senecio madagascariensis | fireweed | All islands |
| Solarium carolinense | horsenettle | All islands |
| Solanum elaeagnifolium | silverleaf nightshade | All islands |
| Solanum robustum | All islands | |
| Solanum torvum | turkeyberry, terongan | All islands |
| Sonchus arvensis | perennial sowthistle | All islands |
| Spartium junceum | Spanish broom | All islands |
| Stipa trichotoma | nasella tussock | All islands |
| Striga spp. | witchweeds | All islands |
| Themeda villosa | Lyon's grass | Maui, Molokai, Lanai, Oahu, Kauai |
| Tibouchina spp. | tibouchina | Maui, Molokai, Lanai, Oahu, Kauai |
| Triumfetta rhomboidea | paroquet bur | Kauai, Maui |
| Triumfetta semitriloba | Sacramento bur | Lanai, Oahu, Molokai, Kauai |
| Ulex europaeus | gorse | Hawaii, Oahu, Lanai, Kauai, Molokai, Maui |
| Urena lobata | caesarweed | Hawaii, Maui, Molokai, Lanai, Kauai |
| Verbascum thapsus | mullein | Maui, Molokai, Lanai, Oahu, Kauai |
Haw. Code R. tit. 4, subtit. 6, ch. 68, List of Plant Species Designated as Noxious Weeds for Eradication or Control Purposes by the Hawaii Department Of Agriculture