CISAC has compiled the list below of over 1,700 species known to be invasive in California or a potential threat for introduction to the state. Please use the comment form below to let us know about: taxa that should be added or removed; species information that you would change; and species that you think should be a high priority for having a scorecard completed (choose Review Scorecards to see the list of scorecards already drafted). Make sure to click Save. Previous comments are displayed at the bottom of the page.

Download Species List (.csv) (to open in a Spreadsheet program)
This data download is provided to aid in the review of the draft invasive species list. We discourage other use of this data until it has been revised and finalized.

Scientific Name Common Name Type Subtype Extent Risk of Introductionsort icon First Source
Melaleuca quinquenervia broadleaf paper bard tree plant woody not present low USDA Plant/Pest
Melastoma malabathricum Malabar melastome plant woody not present low APHIS
Mikania cordata mile-a-minute plant herbaceous not present low USDA Plant/Pest
Mikania micrantha bittervine plant herbaceous not present low USDA Plant/Pest
Milium vernale milium plant grass not present low ID Weed List
Mimosa diplotricha giant sensitive plant plant woody not present low OR Weed List
Mimosa invisa giant sensitive plant plant woody not present low USDA Plant/Pest
Mimosa pellita lollipop mimosa plant woody not present low OR Weed List
Mimosa pigra catclaw mimosa plant woody not present low USDA Plant/Pest
Monochoria hastata arrowleaf falsepickerelweed plant herbaceous not present low USDA Plant/Pest
Nassella trichotoma serrated tussock plant grass not present low USDA Plant/Pest
Opuntia aurantiaca jointed prickly pear plant herbaceous not present low USDA Plant/Pest
Paspalum scrobiculatum Kodo-millet plant grass not present low USDA Plant/Pest
Pennisetum macrourum African feathergrass plant grass not present low USDA Plant/Pest
Pennisetum pedicellatum Kyasumagrass plant grass not present low USDA Plant/Pest
Pennisetum polystachion missiongrass plant grass not present low USDA Plant/Pest
Prosopis alpataco mesquite plant woody not present low USDA Plant/Pest
Prosopis argentina mesquite plant woody not present low USDA Plant/Pest
Prosopis articulata mesquite plant woody not present low USDA Plant/Pest
Prosopis burkartii mesquite plant woody not present low USDA Plant/Pest
Prosopis caldenia mesquite plant woody not present low USDA Plant/Pest
Prosopis calingastana cusqui plant woody not present low USDA Plant/Pest
Prosopis campestris mesquite plant woody not present low USDA Plant/Pest
Prosopis castellanosii mesquite plant woody not present low USDA Plant/Pest
Prosopis denudans mesquite plant woody not present low USDA Plant/Pest
Prosopis elata mesquite plant woody not present low USDA Plant/Pest
Prosopis farcta mesquite plant woody not present low USDA Plant/Pest
Prosopis ferox mesquite plant woody not present low USDA Plant/Pest
Prosopis fiebrigii mesquite plant woody not present low USDA Plant/Pest
Prosopis hassleri mesquite plant woody not present low USDA Plant/Pest
Prosopis humilis mesquite plant woody not present low USDA Plant/Pest
Prosopis kuntzei mesquite plant woody not present low USDA Plant/Pest
Prosopis pallida mesquite plant woody not present low USDA Plant/Pest
Prosopis palmeria mesquite plant woody not present low USDA Plant/Pest
Prosopis reptans mesquite plant woody not present low USDA Plant/Pest
Prosopis rojasiana mesquite plant woody not present low USDA Plant/Pest
Prosopis ruizlealii mesquite plant woody not present low USDA Plant/Pest
Prosopis ruscifolia mesquite plant woody not present low USDA Plant/Pest
Prosopis sericantha mesquite plant woody not present low USDA Plant/Pest
Prosopis torquata mesquite plant woody not present low USDA Plant/Pest
Rubus moluccanus wild raspberry plant woody not present low USDA Plant/Pest
Saccharum spontaneum wild sugarcane plant grass not present low USDA Plant/Pest
Sagittaria sagittifolia arrowhead plant herbaceous not present low USDA Plant/Pest
Senecio inaequidens South African ragwort plant woody not present low USDA Plant/Pest
Senecio linearifolius narrowleaf ragwort plant herbaceous not present low CDFA
Solanum tampicense wetland nightshade plant woody not present low USDA Plant/Pest
Solanum torvum turkeyberry plant woody not present low USDA Plant/Pest
Solanum viarum tropical soda apple plant herbaceous not present low USDA Plant/Pest
Sorghum propinquum sorghum plant grass not present low NV Weed List
Spermacoce alata winged false buttonweed plant herbaceous not present low USDA Plant/Pest
Trapa bicornis water caltrap plant herbaceous not present low WA Weed List
Tridax procumbens coat buttons plant herbaceous not present low USDA Plant/Pest
Tripleurospermum perforatum scentless false mayweed plant herbaceous not present low CO Weed List
Mycoplasma capricolum capripneumoniae Contagious Bovine Caprine Pleuropneumonia disease bacterium not present low Merck Vet Manual
Mycoplasma mycoides mycoides Bovine pleuropneumonia disease bacterium not present low Merck Vet Manual
Xylella fastidiosa CVC Citrus/Select Agent (citrus variegated chlorosis strain) disease bacterium not present low APHIS OPIS
Armillaria novae-zelandiae Armillaria Root Disease disease fungus not present low ForestPests.org
Colletotrichum coffeanum Brown Blight disease fungus not present low USDA Plant/Pest
Cronartium flaccidum Scotch Pine Blister Rust disease fungus not present low USDA Plant/Pest
Geomyces sp. White-Nose Syndrome of bats disease fungus not present low National IS Info
Microcyclus ulei South American Leaf Blight disease fungus not present low APSNet
Peronosclerospora sacchari (philippinensis) Sugarcane Downy Mildew disease fungus not present low USDA Plant/Pest
Sirococcus clavigignenti-juglandacearum Butternut Canker disease fungus not present low ISSG Global InvS
Thecaphora (Angiosorus) solani Potato smut disease fungus not present low EPPO
Cuscuta australis Australian dodder plant herbaceous not present low CDFA
Cuscuta monogyna Eastern Dodder plant herbaceous not present low No list
Alphavirus eeev Eastern Equine Encephalitis Virus disease virus not present low Chavarria NRDC
Alphavirus veev Venezuelan Equine Encephalitis Virus disease virus not present low NIAID
Birnaviridae fam: unknown Citrus Chlorotic Dwarf Virus disease virus not present low EFSA
Badnavirus cymvr Citrus yellow mosaic virus disease virus not present low EFSA
Nepovirus gtrsv Grapevine Tunisian Ringspot Virus disease virus not present low APHIS OPIS
Sargassum muticum Sargassum muticum plant algae limited low Hoffman NOAA
Capua tortrix Capua tortrix arthropod butterfly, moth not present low USDA Plant/Pest
Proeulia spp. Proeulia spp. arthropod butterfly, moth not present low USDA Plant/Pest
Bunyavirus (TZSV) Tomato zonate spot virus (TZSV) disease virus not present low NISIC
Agkistrodon spp. Copperhead snake vertebrate reptile not present low DFG Code 2118
Erinaceus europaeus European hedgehog vertebrate mammal not present low Cal Code 14:671
Phytophthora alni Alder Phytophthora disease fungus not present low NAPPO
Cichlasoma salvini Yellowbelly cichlid vertebrate fish not present low Cal Code 14:671
Bactrocera cucurbitae melon fly arthropod fly not present low CDFA (reg. A)
Dorosoma cepedianum Gizzard shad vertebrate fish not present low Cal Code 14:671
Monopterus albus Asian swamp eel vertebrate fish not present low Cal Code 14:671
Euphorbia serrata serrate spurge plant herbaceous not present moderate CDFA
Halimodendron halodendron Russian salttree plant woody not present moderate CDFA
Salvia virgata southern meadow sage plant herbaceous not present moderate CDFA
Striga asiatica witchweed plant herbaceous not present moderate CDFA
Tagetes minuta wild marigold plant herbaceous not present moderate CDFA
Aphtae epizooticae Hoof and mouth disease disease virus not present moderate CDFA AHFSS
Avian Influenza A (H5N1) Avian influenza disease virus not present moderate CDFA report
Limnophila indica ambulia plant herbaceous not present moderate CDFA
Prosopis strombulifera creeping mesquite plant woody not present moderate USDA Plant/Pest
Sargassum horneri Asian seaweed plant algae limited moderate Hoffman NOAA
Xylella fastidiosa Pierce's Disease/grapevine disease bacterium limited moderate CDFA PD/GWSS
Raffaelea lauricola Laurel Wilt Disease disease fungus not present moderate National IS Info
Carthamus leucocaulos whitestem distaff thistle plant herbaceous not present moderate CDFA
Physalis longifolia long-leaf groundcherry plant herbaceous not present moderate CDFA
Candidatus Liberibacter americanus Huanglongbing disease of Citrus-Americas Strain disease bacterium not present moderate USDA Plant/Pest
Ceratocystis fagacearum Oak wilt disease fungus not present moderate USDA Plant/Pest
Puccinia graminis f. sp. tritici Wheat stem rust (Uganda 99 strain)/Black rust disease fungus not present moderate National IS Info
Potyviruses: Potyviridae Plum pox disease virus not present moderate APHIS OPIS