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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
Capsella bursa-pastoris shepard's purse plant herbaceous widespread n/a (already in CA) Weeds of CA
Capripoxvirus sppv Sheep pox virus disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Capripoxvirus lsd Lumpy Skin Disease of Cattle disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Capreolus capreolus Roe deer vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Capra ibex Alpine ibex vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Capra hircus Feral goat vertebrate mammal VALUE REQUIRED n/a (already in CA) ISSG 100WorstIAS
Capillovirus of unknown genus Apple stem grooving virus disease virus not present VALUE REQUIRED No list
Capillovirus CiTLV Citrus tatter leaf capillovirus/Citrange stunt virus disease virus limited n/a (already in CA) EPPO
Canis familiaris Feral dog vertebrate mammal limited high Cal Code 14:671
Candidatus phytoplasma spp. Grapevine Yellows Disease disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus Phytoplasma mali Apple proliferation disease phytoplasma VALUE REQUIRED VALUE REQUIRED No list
Candidatus Phytoplasma australiense Australian grapevine yellows/Phytoplasma yellows disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus phytoplasma Witches broom disease of lime disease phytoplasma not present VALUE REQUIRED APHIS OPIS
Candidatus Phlomobacter fragariae Marginal chlororsis disease bacterium VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Candidatus Lieberobacter asiaticum Apple Brown Ringspot Agent disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus Liberibacter sp. Huanglongbing Disease of Citrus disease bacterium not present high USDA Plant/Pest
Candidatus Liberibacter solanacearum potato zebra chip disease bacterium not present VALUE REQUIRED APHIS OPIS
Candidatus Liberibacter asiaticus Huanglongbing disease of Citrus-Asian Strain disease bacterium not present high USDA Plant/Pest
Candidatus Liberibacter americanus Huanglongbing disease of Citrus-Americas Strain disease bacterium not present moderate USDA Plant/Pest
Candidatus Liberibacter africanus Huanglongbing disease of citrus-African strain disease bacterium not present low USDA Plant/Pest
Candidatus fragariae Marginal chlororsis disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Candidatus australiense Phytoplasma Yellows disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Calotes versicolor Oriental garden lizard vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Callipepla squamata Scaled quail vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cakile maritima European sea-rocket plant herbaceous widespread n/a (already in CA) Cal-IPC list
Caiman crocodilus Spectacled caiman vertebrate reptile not present high Cal Code 14:671
Cactoblasis cactorum cactus moth arthropod butterfly, moth not present high CDFA (reg. A)
Cacatua goffini Giffin’s 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 alba White-crested cockatoo vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cabomba caroliniana Carolina fanwort plant herbaceous limited n/a (already in CA) CDFA
Bymovirus baymv Barley Yellow Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Butomus umbellatus flowering rush plant herbaceous not present high WA Weed List
Busycotypus canaliculatus Channeled whelk invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Bunyavirus (TZSV) Tomato zonate spot virus (TZSV) disease virus not present low NISIC
Bugula neritina Moss animal invertebrate other limited n/a (already in CA) Exoticsguide
Bufo marinus Giant toad vertebrate amphibian not present high Cal Code 14:671
Buddleja davidii butterflybush plant woody limited n/a (already in CA) OR Weed List
Bryonia alba white bryony plant herbaceous not present moderate WA Weed List
Brotogeris versicolurus Canary-winged parakeet vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Bromus tectorum downy 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 japonicus Japanese 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 diandrus ripgut brome plant grass widespread n/a (already in CA) Cal-IPC list
Briza maxima big quackingrass plant grass widespread n/a (already in CA) Cal-IPC list
Brevipalpus phoenicis red and black flat mite arthropod mite limited n/a (already in CA) CACASA
Brevipalpus chilensis false grape mite arthropod mite not present high USDA Plant/Pest
Brevidensovirus IHHNV Infectious Hypodermal and Hematopoietic Necrosis Virus of fish disease virus VALUE REQUIRED VALUE REQUIRED No list
Brenneria salicis Willow Watermark Disease disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Brassica tournefortii Saharan mustard plant herbaceous limited n/a (already in CA) Cal-IPC list
Brassica rapa birdsrape mustard plant herbaceous widespread n/a (already in CA) Cal-IPC list
Brassica nigra black mustard plant herbaceous 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
Brachypodium distachyon annual false-brome plant grass widespread n/a (already in CA) Cal-IPC list
Brachycerus spp. garlic beetles arthropod beetle not present moderate USDA Plant/Pest
Botryllus schlosseri Star sea squirt invertebrate crustaceans and tunicates limited n/a (already in CA) Exoticsguide
Botrylloides violaceus Chain sea squirt invertebrate crustaceans and tunicates limited n/a (already in CA) Exoticsguide
Boselaphus tragocamelus Nilgai vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Boiga irregularis Brown treesnake vertebrate reptile not present high Cal Code 14:671
Boa constrictor Common boa vertebrate reptile limited n/a (already in CA) Cal Code 14:671
Birnaviridae fam: unknown Citrus Chlorotic Dwarf Virus disease virus not present low EFSA
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
Bigeminvirus mymv Mung Bean Yellow Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bigeminvirus acmv Cassava African Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bigeminivirus lgmv Lima Bean Golden Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Benyovirus bnyvv Beet necrotic yellow vein virus (BNYVV) disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bellardia trixago bellardia plant herbaceous limited n/a (already in CA) Cal-IPC list
Begomovius hgymv Horsegram Yellow Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovirus lgmv Lima Bean Golden 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 byvmv Bhendi Yellow Vein Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovirus bgmv Bean Golden Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Begomovirus (var.) Begomovirus-caused diseases disease virus limited n/a (already in CA) APHIS OPIS
Begomovirus (ToTV) Tomato Torrado Virus (ToTV) disease virus not present moderate EPPO
Begomovirus (GEM2) Tomato Yellow Leaf Curl Virus disease virus limited n/a (already in CA) CDFA (reg. A)
Beauveria spp. Beauveria bassiana (Balsamo) disease fungus widespread n/a (already in CA) National IS Info
Batrachochytrium dendrobatidis chytrid frog fungi disease fungus limited n/a (already in CA) Amphibiaweb.org
Bassia hyssopifolia fivehook bassia plant herbaceous limited n/a (already in CA) Cal-IPC list
Basiliscus vittatus Brown basilisk vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Bambusicola thoracica Chinese bamboo partridge vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Balanus amphitrite Striped barnacle invertebrate crustaceans and tunicates limited n/a (already in CA) Exoticsguide
Bagrada hilaris Bagrada bug arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Badnavirus cymvr Citrus yellow mosaic virus disease virus not present low EFSA
Badnavirus cssv Cocoa Mottle Leaf Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Badnavirus bsv Banana Streak Virus disease virus VALUE REQUIRED VALUE REQUIRED No list
Baculovirus PmSNPV Mbv-Type Virus of fish disease virus VALUE REQUIRED VALUE REQUIRED No list
Baculovirus complex WSBV White Spot Syndrome Baculovirus Complex of fish disease virus VALUE REQUIRED VALUE REQUIRED No list
Baculovirus BMNV (PjNOB1) Baculoviral Midgut Gland Necrosis Virus (BMNV) of fish disease virus VALUE REQUIRED VALUE REQUIRED No list
Bactrocera zonata Peach fruit fly arthropod fly not present moderate CDFA (reg. A)
Bactrocera tryoni Queensland fruit fly arthropod fly not present moderate CDFA (reg. A)
Bactrocera spp. exotic fruit fly arthropod fly limited n/a (already in CA) CDFA (reg. A)
Bactrocera scutellata Striped fruit fly arthropod fly not present low CDFA (reg. A)
Bactrocera oleae Olive fruit fly arthropod fly widespread n/a (already in CA) pest of concern
Bactrocera latifrons solanaceous fruit fly arthropod fly not present moderate CDFA (reg. A)
Bactrocera irvingiae irvinge fruit fly arthropod fly not present low CDFA (reg. A)
Bactrocera facialis Tongan fruit fly arthropod fly not present moderate CDFA (reg. A)
Bactrocera dorsalis Oriental fruit fly arthropod fly not present moderate CDFA (reg. A)