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 Introduction | First Source | |
---|---|---|---|---|---|---|---|
Sciurus aberti | Abert’s squirrel | vertebrate | mammal | VALUE REQUIRED | VALUE REQUIRED | Witmer et al | |
Artemisia absinthium | absinthe wormwood | plant | herbaceous | limited | n/a (already in CA) | CO Weed List | |
Kilifia acuminata | acuminate scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
Adoretus spp. | Adoretus spp. | arthropod | beetle | not present | high | USDA Plant/Pest | |
Gymnaspis aechmeae | aechmea scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
Aeginetia spp. | aeginetia | plant | herbaceous | not present | moderate | USDA Plant/Pest | |
Lycium ferocissimum | African boxthorn | plant | herbaceous | limited | n/a (already in CA) | USDA Plant/Pest | |
Trioza erytreae | African citrus psyllid | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. A) | |
Xenopus laevis | African clawed frog | vertebrate | amphibian | limited | n/a (already in CA) | Cal Code 14:671 | |
Streptopelia roseogrisea | African collared dove | vertebrate | bird | VALUE REQUIRED | VALUE REQUIRED | Witmer et al | |
Pennisetum macrourum | African feathergrass | plant | grass | not present | low | USDA Plant/Pest | |
Orbivirus ahsv | African Horse Sickness Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | Chavarria NRDC | |
Dacus bivittatus | African pumpkin fly | arthropod | fly | not present | moderate | CDFA (reg. A) | |
Luteovirus of unassigned genus | African Soybean Dwarf Agent | disease | virus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Asfivirus asfv | African Swine Fever Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | Chavarria NRDC | |
Apis mellifera scutellata | Africanized honeybee | arthropod | bee, wasp | limited | n/a (already in CA) | USDA Plant/Pest | |
Orthobunyavirus akav | Akabane Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | Chavarria NRDC | |
Dysmicoccus alazon | alazon mealybug | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
Acutaspis albopicta | albopicta scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
Rhadinovirus aihv-1 | Alcelaphine herpesvirus 1 | disease | virus | VALUE REQUIRED | VALUE REQUIRED | Chavarria NRDC | |
Phytophthora alni | Alder Phytophthora | disease | oomycete | not present | moderate | APHIS OPIS | |
Phytophthora alni | Alder Phytophthora | disease | fungus | not present | low | NAPPO | |
Alectra spp. | alectra | plant | herbaceous | not present | moderate | USDA Plant/Pest | |
Rhabdovirus aev | Alfalfa Enation Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Hedera canariensis | Algerian ivy | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
Alternanthera philoxeroides | alligator weed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
Capra ibex | Alpine ibex | vertebrate | mammal | VALUE REQUIRED | VALUE REQUIRED | Witmer et al | |
Aecidium hydrangeae-paniculatae | alt: Puccinia glyceriae/ rust on Hydrangea spp. and Glyceria spp. | disease | fungus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Xyleborus pfeili | ambrosia beetle | arthropod | beetle | limited | n/a (already in CA) | CDFA (reg. B) | |
Xyleborus spp. | ambrosia beetles | arthropod | beetle | not present | moderate | USDA Plant/Pest | |
Limnophila indica | ambulia | plant | herbaceous | not present | moderate | CDFA | |
Rana catesbeiana | American bullfrog | vertebrate | amphibian | widespread | n/a (already in CA) | Cal Code 14:671 | |
Mustela vision | American mink | vertebrate | mammal | VALUE REQUIRED | VALUE REQUIRED | Lacey Act | |
Myndus crudus | American palm cixiid | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
Potamocorbula amurensis | Amur River Corbula Clam | invertebrate | aquatic mollusk, marine | VALUE REQUIRED | VALUE REQUIRED | NISIC | |
Eichhornia azurea | anchored water hyacinth | plant | herbaceous | not present | low | USDA Plant/Pest | |
Tymovirus aplv | Andean Potato Latent Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Comovirus of unknown genus | Andean Potato Mottle Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Avena sterilis | animated oat | plant | grass | limited | n/a (already in CA) | APHIS | |
Anchusa arvensis | annual bugloss | plant | herbaceous | limited | n/a (already in CA) | WA Weed List | |
Brachypodium distachyon | annual false-brome | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
Anomala sulcatula | Anomala sulcatula | arthropod | beetle | not present | moderate | USDA Plant/Pest | |
Bacillus anthracis | Anthrax | disease | bacterium | not present | moderate | CDFA AHFSS | |
Xanthomonas axonopodis pv. Dieffenbachiae | Anthurium Blight | disease | bacterium | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Ammotragus lervia | Aoudad | vertebrate | mammal | VALUE REQUIRED | VALUE REQUIRED | Witmer et al | |
Candidatus Lieberobacter asiaticum | Apple Brown Ringspot Agent | disease | bacterium | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Trichovirus aclsv | Apple Chlorotic Leafspot Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | No list | |
Rhagoletis pomonella | apple maggot | arthropod | fly | widespread | n/a (already in CA) | CDFA (reg. B) | |
Phenococcus aceris | apple mealybug | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
Ilarvirus apmv | Apple mosaic virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | No list | |
Candidatus Phytoplasma mali | Apple proliferation | disease | phytoplasma | VALUE REQUIRED | VALUE REQUIRED | No list | |
Unknown pathogenic phytoplasma 1 | Apple Rubbery Wood Phytoplasma | disease | phytoplasma | VALUE REQUIRED | VALUE REQUIRED | No list | |
Apscaviroid 1 | Apple scar skin viroid | disease | virus | VALUE REQUIRED | VALUE REQUIRED | USDA Plant/Pest | |
Capillovirus of unknown genus | Apple stem grooving virus | disease | virus | not present | VALUE REQUIRED | No list | |
Nepovirus armv | Arabis mosaic virus and its strains | disease | virus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Spermophilus parryii | Arctic ground squirrel | vertebrate | mammal | widespread | n/a (already in CA) | Witmer et al | |
Tupinambis merianae | Argentina giant tegu | vertebrate | reptile | not present | high | Cal Code 14:671 | |
Chelymorpha cassidea | argus tortoise beetle | arthropod | beetle | limited | n/a (already in CA) | CDFA (reg. B) | |
Armillaria limonea | Armillaria Root Disease | disease | fungus | VALUE REQUIRED | VALUE REQUIRED | USDA Plant/Pest | |
Armillaria novae-zelandiae | Armillaria Root Disease | disease | fungus | not present | low | ForestPests.org | |
Abgrallaspis aguacatae | armored scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
Dinaspis aculeata | armored scale | arthropod | scale, aphid | not present | moderate | CDFA (reg. A) | |
Mycetaspis spaerioides | armored scale | arthropod | scale, aphid | not present | high | CDFA (reg. A) | |
Spodoptera dolichos | armyworm | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
Nepovirus avb | Arracacha Virus B | disease | virus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Sagittaria sagittifolia | arrowhead | plant | herbaceous | not present | low | USDA Plant/Pest | |
Monochoria hastata | arrowleaf falsepickerelweed | plant | herbaceous | not present | low | USDA Plant/Pest | |
Nepovirus ailv | Artichoke Italian Latent Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Cynara cardunculus | artichoke thistle | plant | herbaceous | widespread | n/a (already in CA) | CDFA | |
Ganoderma mastoporum | Artist Conk | disease | fungus | VALUE REQUIRED | VALUE REQUIRED | USDA Plant/Pest | |
Sphaerodactylus elegans | Ashy gecko | vertebrate | reptile | VALUE REQUIRED | VALUE REQUIRED | FL FWCC NNS List | |
Xyleborinus andrewesi | Asian ambrosia beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
Diaphorina citri | Asian citrus psyllid | arthropod | scale, aphid | limited | n/a (already in CA) | CDFA (reg. A) | |
Corbicula fluminea | Asian clam | invertebrate | aquatic mollusk, freshwater | widespread | n/a (already in CA) | ANSTF | |
Hemidactylus platyurus | Asian flat-tailed gecko | vertebrate | reptile | VALUE REQUIRED | VALUE REQUIRED | Witmer et al | |
Anoplophora glabripennis | Asian longhorned beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
Grateloupia turuturu | Asian red seaweed | plant | algae | VALUE REQUIRED | VALUE REQUIRED | Hoffman NOAA | |
Sargassum horneri | Asian seaweed | plant | algae | limited | moderate | Hoffman NOAA | |
Phakopsora pachyrhizi | Asian soybean Rust | disease | fungus | not present | low | National IS Info | |
Leptochloa chinensis | Asian sprangletop | plant | grass | not present | moderate | USDA Plant/Pest | |
Monopterus albus | Asian swamp eel | vertebrate | fish | not present | low | Cal Code 14:671 | |
Maladera castanea | Asiatic garden beetle | arthropod | beetle | not present | high | CDFA (reg. A) | |
Chilo suppressalis | Asiatic rice borer | arthropod | butterfly, moth | not present | high | CDFA (reg. A) | |
Conyza bonariensis | asthmaweed | plant | herbaceous | widespread | n/a (already in CA) | Weeds of CA | |
Tamarix aphylla | athel tamarisk | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
Urosalpinx cinerea | Atlantic oyster drill | invertebrate | aquatic mollusk, marine | widespread | n/a (already in CA) | Exoticsguide | |
Attacus atlas | atlas silk moth | arthropod | butterfly, moth | not present | moderate | CDFA (reg. A) | |
Aleuroclava aucubae | aucuba whitefly | arthropod | scale, aphid | widespread | n/a (already in CA) | CDFA (reg. B) | |
Unknown pathogenic virus or phytoplasma | Australian citrus dieback n/a probably phytoplasma | disease | unknown | not present | VALUE REQUIRED | No list | |
Cuscuta australis | Australian dodder | plant | herbaceous | not present | low | CDFA | |
Erechtites glomerata | Australian fireweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
Erechtites minima | Australian fireweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
Candidatus Phytoplasma australiense | Australian grapevine yellows/Phytoplasma yellows | disease | phytoplasma | VALUE REQUIRED | VALUE REQUIRED | APHIS OPIS | |
Unknown pathogenic virus 1 | Australian lymphoidal Parvo-Like Virus of fish | disease | virus | VALUE REQUIRED | VALUE REQUIRED | No list | |
Atriplex semibaccata | Australian saltbush | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
Inopus rubriceps | Australian sod fly | arthropod | fly | limited | n/a (already in CA) | CDFA (reg. B) | |
Crassula helmsii | Australian swamp stonecrop | plant | herbaceous | not present | low | WA Weed List | |
Rorippa austriaca | Austrian field cress | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
Sphaerophysa salsula | Austrian peaweed | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
Pasteurella multocida | Avian cholera | disease | bacterium | widespread | n/a (already in CA) | Merck Vet Manual |