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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 Namesort icon Common Name Type Subtype Extent Risk of Introduction First Source
Begomovirus (GEM2) Tomato Yellow Leaf Curl Virus disease virus limited n/a (already in CA) CDFA (reg. A)
Begomovirus (ToTV) Tomato Torrado Virus (ToTV) disease virus not present moderate EPPO
Begomovirus (var.) Begomovirus-caused diseases disease virus limited n/a (already in CA) APHIS OPIS
Begomovirus bgmv Bean Golden Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovirus byvmv Bhendi Yellow Vein Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovirus clcuv Cotton Leaf Curl Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovirus lgmv Lima Bean Golden Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovius hgymv Horsegram Yellow Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bellardia trixago bellardia plant herbaceous limited n/a (already in CA) Cal-IPC list
Benyovirus bnyvv Beet necrotic yellow vein virus (BNYVV) disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bigeminivirus lgmv Lima Bean Golden Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bigeminvirus acmv Cassava African Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bigeminvirus mymv Mung Bean Yellow Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Birnaviridae Groundnut Chlorotic Leaf Streak Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Birnaviridae Kashmir Bee Virus disease virus limited n/a (already in CA) APHIS OPIS
Birnaviridae fam: unknown Citrus Chlorotic Dwarf Virus disease virus not present low EFSA
Boa constrictor Common boa vertebrate reptile limited n/a (already in CA) Cal Code 14:671
Boiga irregularis Brown treesnake vertebrate reptile not present high Cal Code 14:671
Boselaphus tragocamelus Nilgai vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Botrylloides violaceus Chain sea squirt invertebrate crustaceans and tunicates limited n/a (already in CA) Exoticsguide
Botryllus schlosseri Star sea squirt invertebrate crustaceans and tunicates limited n/a (already in CA) Exoticsguide
Brachycerus spp. garlic beetles arthropod beetle not present moderate USDA Plant/Pest
Brachypodium distachyon annual false-brome plant grass widespread n/a (already in CA) Cal-IPC list
Brachypodium sylvaticum perennial false-brome plant grass limited n/a (already in CA) Cal-IPC list
Brassica nigra black mustard plant herbaceous widespread n/a (already in CA) Cal-IPC list
Brassica rapa birdsrape mustard plant herbaceous widespread n/a (already in CA) Cal-IPC list
Brassica tournefortii Saharan mustard plant herbaceous limited n/a (already in CA) Cal-IPC list
Brenneria salicis Willow Watermark Disease disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Brevidensovirus IHHNV Infectious Hypodermal and Hematopoietic Necrosis Virus of fish disease virus VALUE REQUIRED VALUE REQUIRED No list
Brevipalpus chilensis false grape mite arthropod mite not present high USDA Plant/Pest
Brevipalpus phoenicis red and black flat mite arthropod mite limited n/a (already in CA) CACASA
Briza maxima big quackingrass plant grass widespread n/a (already in CA) Cal-IPC list
Bromus diandrus ripgut brome plant grass widespread n/a (already in CA) Cal-IPC list
Bromus hordeaceus soft brome plant grass widespread n/a (already in CA) Cal-IPC list
Bromus japonicus Japanese brome plant grass widespread n/a (already in CA) Cal-IPC list
Bromus madritensis ssp. rubens red brome plant grass widespread n/a (already in CA) Cal-IPC list
Bromus madritensis ssp. rubens red brome plant grass widespread n/a (already in CA) Cal-IPC list
Bromus tectorum downy brome plant grass widespread n/a (already in CA) Cal-IPC list
Brotogeris versicolurus Canary-winged parakeet vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Bryonia alba white bryony plant herbaceous not present moderate WA Weed List
Buddleja davidii butterflybush plant woody limited n/a (already in CA) OR Weed List
Bufo marinus Giant toad vertebrate amphibian not present high Cal Code 14:671
Bugula neritina Moss animal invertebrate other limited n/a (already in CA) Exoticsguide
Bunyavirus (TZSV) Tomato zonate spot virus (TZSV) disease virus not present low NISIC
Busycotypus canaliculatus Channeled whelk invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Butomus umbellatus flowering rush plant herbaceous not present high WA Weed List
Bymovirus baymv Barley Yellow Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cabomba caroliniana Carolina fanwort plant herbaceous limited n/a (already in CA) CDFA
Cacatua alba White-crested cockatoo vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cacatua galerita Sulphur-crested cockatoo vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cacatua goffini Giffin’s cockatoo vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cactoblasis cactorum cactus moth arthropod butterfly, moth not present high CDFA (reg. A)
Caiman crocodilus Spectacled caiman vertebrate reptile not present high Cal Code 14:671
Cakile maritima European sea-rocket plant herbaceous widespread n/a (already in CA) Cal-IPC list
Callipepla squamata Scaled quail vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Calotes versicolor Oriental garden lizard vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Candidatus australiense Phytoplasma Yellows disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus fragariae Marginal chlororsis disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus Liberibacter africanus Huanglongbing disease of citrus-African strain disease bacterium not present low USDA Plant/Pest
Candidatus Liberibacter americanus Huanglongbing disease of Citrus-Americas Strain disease bacterium not present moderate USDA Plant/Pest
Candidatus Liberibacter asiaticus Huanglongbing disease of Citrus-Asian Strain disease bacterium not present high USDA Plant/Pest
Candidatus Liberibacter solanacearum potato zebra chip disease bacterium not present VALUE REQUIRED APHIS OPIS
Candidatus Liberibacter sp. Huanglongbing Disease of Citrus disease bacterium not present high USDA Plant/Pest
Candidatus Lieberobacter asiaticum Apple Brown Ringspot Agent disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus Phlomobacter fragariae Marginal chlororsis disease bacterium VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Candidatus phytoplasma Witches broom disease of lime disease phytoplasma not present VALUE REQUIRED APHIS OPIS
Candidatus Phytoplasma australiense Australian grapevine yellows/Phytoplasma yellows disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus Phytoplasma mali Apple proliferation disease phytoplasma VALUE REQUIRED VALUE REQUIRED No list
Candidatus phytoplasma spp. Grapevine Yellows Disease disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Canis familiaris Feral dog vertebrate mammal limited high Cal Code 14:671
Capillovirus CiTLV Citrus tatter leaf capillovirus/Citrange stunt virus disease virus limited n/a (already in CA) EPPO
Capillovirus of unknown genus Apple stem grooving virus disease virus not present VALUE REQUIRED No list
Capra hircus Feral goat vertebrate mammal VALUE REQUIRED n/a (already in CA) ISSG 100WorstIAS
Capra ibex Alpine ibex vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Capreolus capreolus Roe deer vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Capripoxvirus lsd Lumpy Skin Disease of Cattle disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Capripoxvirus sppv Sheep pox virus disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Capsella bursa-pastoris shepard's purse plant herbaceous widespread n/a (already in CA) Weeds of CA
Capua tortrix Capua tortrix arthropod butterfly, moth not present low USDA Plant/Pest
Carausius morosus Indian walking stick arthropod stick insect limited n/a (already in CA) CDFA (reg. B)
Carcinus maenas Green crab invertebrate crustaceans and tunicates limited n/a (already in CA) NISIC
Cardaria chalepensis lens-podded white-top plant herbaceous limited n/a (already in CA) CDFA
Cardaria draba hoary cress plant herbaceous widespread n/a (already in CA) CDFA
Cardaria pubescens hairy whitetop plant herbaceous limited n/a (already in CA) CDFA
Cardinalis cardinalis Common cardinal vertebrate bird VALUE REQUIRED n/a (already in CA) DFG Code 2118
Carduus acanthoides plumeless thistle plant herbaceous limited n/a (already in CA) CDFA
Carduus nutans musk thistle plant herbaceous limited n/a (already in CA) CDFA
Carduus pycnocephalus Italian thistle plant herbaceous widespread n/a (already in CA) CDFA
Carduus tenuiflorus slenderflower thistle plant herbaceous widespread n/a (already in CA) CDFA
Carlavirus Blueberry Scorch carlavirus disease virus not present moderate EPPO
Carlavirus casmmv Cassava Common Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Carlavirus cpmmv Cowpea Mild Mottle Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Carlavirus pvm Potato Mop Top Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Carpobrotus edulis iceplant plant herbaceous widespread n/a (already in CA) Cal-IPC list
Carposina niponensis peach fruit moth arthropod butterfly, moth not present low USDA Plant/Pest
Carthamus baeticus smooth distaff thistle plant herbaceous limited n/a (already in CA) CDFA
Carthamus lanatus woolly distaff thistle plant herbaceous widespread n/a (already in CA) CDFA
Carthamus leucocaulos whitestem distaff thistle plant herbaceous not present moderate CDFA
Carthamus oxyacantha wild safflower plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Carum carvi wild caraway plant herbaceous not present high CO Weed List