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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
Bactrocera cucurbitae melon fly arthropod fly not present low CDFA (reg. A)
Bactrocera correcta Guava fruit fly arthropod fly not present moderate CDFA (reg. A)
Bactrocera albistrigata White Striped Fruit Fly arthropod fly not present low CDFA (reg. A)
Bacillus anthracis Anthrax disease bacterium not present moderate CDFA AHFSS
Babuvirus bbtv Banana Bunchy Top Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Azolla pinnata mosquito fern plant herbaceous not present moderate USDA Plant/Pest
Avulavirus ndv Exotic Newcastle Disease disease virus not present moderate CDFA AHFSS
Avipoxvirus Bird pox disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Avian Influenza A (H5N1) Avian influenza disease virus not present moderate CDFA report
Avena sterilis animated oat plant grass limited n/a (already in CA) APHIS
Avena fatua wild oat plant grass widespread n/a (already in CA) Cal-IPC list
Avena barbata slender wild oat plant grass widespread n/a (already in CA) Cal-IPC list
Aulacaspis yasumatsui cycad aulacaspis scale arthropod scale, aphid not present high Univ. Florida
Attacus atlas atlas silk moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Atriplex semibaccata Australian saltbush plant herbaceous widespread n/a (already in CA) Cal-IPC list
Atrichonotus taeniatulus small lucerne weevil arthropod beetle not present high CDFA (reg. B)
Asterolecanium epidendri orchard scale arthropod scale, aphid not present high CDFA (reg. A)
Aspidiotus destructor coconut scale arthropod scale, aphid not present high CDFA (reg. A)
Asphodelus fistulosus onionweed plant herbaceous limited n/a (already in CA) Cal-IPC list
Asparagus asparagoides bridal creeper plant herbaceous limited n/a (already in CA) Cal-IPC list
Asfivirus asfv African Swine Fever Virus disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Ascophyllum nodosum common brown algae plant algae limited n/a (already in CA) Hoffman NOAA
Arundo donax giant reed plant grass widespread n/a (already in CA) Cal-IPC list
Artemisia absinthium absinthe wormwood plant herbaceous limited n/a (already in CA) CO Weed List
Armillaria novae-zelandiae Armillaria Root Disease disease fungus not present low ForestPests.org
Armillaria limonea Armillaria Root Disease disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Argyrotaenia velutinana redbanded leafroller arthropod butterfly, moth not present high CDFA (reg. A)
Argyrotaenia pulchellana grey red-barred twist arthropod butterfly, moth not present low USDA Plant/Pest
Arctotheca calendula (sterile) sterile capeweed plant herbaceous limited n/a (already in CA) CDFA
Arctotheca calendula (fertile) fertile capeweed plant herbaceous limited n/a (already in CA) CDFA
Arctium minus common burdock plant herbaceous limited n/a (already in CA) CO Weed List
Araujia sericifera bladderflower plant woody limited n/a (already in CA) CDFA
Aratinga pertinax Brown-throated conure vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Aratinga mitrata Mitered conure vertebrate bird VALUE REQUIRED n/a (already in CA) FL FWCC NNS List
Aratinga cruentata Blue-fronted conure vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Aratinga acuticaudata Blue-crowned parakeet vertebrate bird VALUE REQUIRED n/a (already in CA) FL FWCC NNS List
Araecerus coffeae coffee bean weevil arthropod beetle limited n/a (already in CA) CDFA (reg. B)
Apscaviroid pbcvd Pear Blister Canker Viroid disease virus VALUE REQUIRED VALUE REQUIRED No list
Apscaviroid 3 Grapevine yellow speckle viroid disease virus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Apscaviroid 2 Citrus bent leaf viroid disease virus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Apscaviroid 1 Apple scar skin viroid disease virus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Apis mellifera scutellata Africanized honeybee arthropod bee, wasp limited n/a (already in CA) USDA Plant/Pest
Apis mellifera capensis Cape honeybee arthropod bee, wasp not present high USDA Plant/Pest
Aphtae epizooticae Hoof and mouth disease disease virus not present moderate CDFA AHFSS
Aphis glycines soybean aphid arthropod scale, aphid not present high USDA pest
Aphanomyces astaci Crayfish plague disease fungus widespread n/a (already in CA) ISSG Global InvS
Apamea apamiformis riceworm arthropod butterfly, moth not present moderate CDFA (reg. A)
Aonidiella orientalis oriental scale arthropod scale, aphid not present high CDFA (reg. A)
Aonidiella aurantii California red scale arthropod scale, aphid widespread n/a (already in CA) CDFA (reg. B)
Antilope cervicapra Blackbuck vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Anthriscus sylvestris wild chervil plant herbaceous not present high WA Weed List
Anthoxanthum odoratum sweet vernalgrass plant grass widespread n/a (already in CA) Cal-IPC list
Anthonomus signatus strawberry bud weevil arthropod beetle not present high CDFA (reg. A)
Anthonomus grandis grandis boll weevil arthropod beetle not present high CDFA (reg. A)
Anthemis cotula mayweed chamomile plant herbaceous widespread n/a (already in CA) CO Weed List
Anthemis arvensis scentless chamomile plant herbaceous limited n/a (already in CA) CO Weed List
Antechinus spp. Broad-footed marsupial mouse vertebrate mammal VALUE REQUIRED VALUE REQUIRED OR ISC Worst 100
Antaeotricha leucillana stenomine oecophorid arthropod butterfly, moth not present moderate CDFA (reg. A)
Anoplophora glabripennis Asian longhorned beetle arthropod beetle not present high CDFA (reg. A)
Anoplophora chinensis citrus longhorned beetle arthropod beetle not present high CDFA (reg. A)
Anomala undulata scarab beetle arthropod beetle unknown low CDFA (reg. A)
Anomala sulcatula Anomala sulcatula arthropod beetle not present moderate USDA Plant/Pest
Anomala orientalis Oriental beetle arthropod beetle not present moderate CDFA (reg. A)
Anomala luteipennis scarab beetle arthropod beetle not present low CDFA (reg. A)
Anomala insitiva scarab beetle arthropod beetle not present low CDFA (reg. A)
Anomala foraminosa scarab beetle arthropod beetle not present low CDFA (reg. A)
Anolis sagrei Brown anole vertebrate reptile not present high Cal Code 14:671
Anolis porcatus Cuban green anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anolis garmani Jamaican giant anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anolis ferreus Marie Gallant Sail-tailed anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anolis equestris Knight anole vertebrate reptile not present high Cal Code 14:671
Anolis distichus Bark anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anolis cybotes Large-headed anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anolis cristatellus Puerto Rican crested anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anolis chlorocyanus Hispaniolan green anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anolis carolinensis Green anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Anoda cristata spurred anoda plant herbaceous limited n/a (already in CA) CO Weed List
Anchusa officinalis common bugloss plant herbaceous limited n/a (already in CA) OR Weed List
Anchusa arvensis annual bugloss plant herbaceous limited n/a (already in CA) WA Weed List
Anastrepha suspensa Caribbean fruit fly arthropod fly not present moderate CDFA (reg. A)
Anastrepha striata guava fruit fly arthropod fly not present low CDFA (reg. A)
Anastrepha sp. exotic fruit fly arthropod fly not present high CDFA (reg. A)
Anastrepha serpentina sapote fruit fly arthropod fly limited n/a (already in CA) CDFA (reg. A)
Anastrepha obliqua West Indian fruit fly arthropod fly not present moderate CDFA (reg. A)
Anastrepha ludens complex Mexican fruit fly complex arthropod fly not present moderate CDFA (reg. A)
Anastrepha grandis South American cucurbit fruit fly arthropod fly not present high USDA Plant/Pest
Anastrepha fraterculus South American fruit fly arthropod fly not present high CDFA (reg. A)
Amphitetranychus viennensis fruit tree spider mite arthropod mite not present high USDA Plant/Pest
Amorpha fruticosa indigobush plant woody limited n/a (already in CA) WA Weed List
Ammotragus lervia Aoudad vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Ammophila arenaria European beachgrass plant grass widespread n/a (already in CA) Cal-IPC list
Amia calva Bowfin vertebrate fish not present high Cal Code 14:671
Ameiva ameiva Giant ameiva vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Ambystoma tigrinum Eastern Tiger Salamander vertebrate amphibian limited high Cal Code 14:671
Ambrosia trifida giant ragweed plant herbaceous limited n/a (already in CA) CDFA
Ambrosia tomentosa skeletonleaf bursage plant herbaceous not present high ID Weed List
Ambrosia artemisifolia ragweed plant herbaceous widespread n/a (already in CA) OR Weed List
Amazona viridigenalis Green-cheeked Amazon vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Amazona oratrix Yellow-headed Amazon vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Amazona ochrocephula Yellow-crowned Amazon vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List