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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 Name Common Namesort icon Type Subtype Extent Risk of Introduction First Source
Sphaeroma quoyanum Isopod invertebrate crustaceans and tunicates VALUE REQUIRED VALUE REQUIRED NISIC
Bactrocera irvingiae irvinge fruit fly arthropod fly not present low CDFA (reg. A)
Nucleorhabdovirus immv Iranian Maize Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED No list
Diprion similis introduced pine sawfly arthropod bee, wasp not present high CDFA (reg. A)
Syngrapha epigaea inscribed looper moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Isavirus isa Infectious Salmon Isavirus Anemia (ISA) disease virus VALUE REQUIRED VALUE REQUIRED No list
Brevidensovirus IHHNV Infectious Hypodermal and Hematopoietic Necrosis Virus of fish disease virus VALUE REQUIRED VALUE REQUIRED No list
Luteovirus isdv Indonesian Soybean Dwarf Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Hemiphyllodactylus typus Indo-Pacific tree gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Hemidactylus garnotti Indo-Pacific gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Amorpha fruticosa indigobush plant woody limited n/a (already in CA) WA Weed List
Cuon alpinus Indian wild dog / Dhole vertebrate mammal VALUE REQUIRED VALUE REQUIRED Lacey Act
Ceroplastes ceriferus Indian wax scale arthropod scale, aphid not present high CDFA (reg. A)
Carausius morosus Indian walking stick arthropod stick insect limited n/a (already in CA) CDFA (reg. B)
Euscepes postfasciatus Indian sweetpotato weevil arthropod beetle not present high USDA Plant/Pest
Pecluvirus ipcv Indian Peanut Clump Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Mandarivirus icrsv Indian citrus ringspot virus disease virus not present low NAPPO
Pseudococcus importatus imported mealybug arthropod scale, aphid not present moderate CDFA (reg. A)
Onopordum illyricum Illyrian thistle plant herbaceous limited n/a (already in CA) CDFA
Carpobrotus edulis iceplant plant herbaceous widespread n/a (already in CA) Cal-IPC list
Centaurea iberica Iberian starthistle plant herbaceous limited n/a (already in CA) CDFA
Lythrum hyssopifolium hyssop loosestrife plant herbaceous widespread n/a (already in CA) Cal-IPC list
Hydrilla verticillata hydrilla plant herbaceous limited n/a (already in CA) CDFA
Solenopsis richteri X Solenopsis invicta hybrid hybrid fire ant arthropod bee, wasp not present high CDFA (reg. A)
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 Liberibacter sp. Huanglongbing Disease of Citrus disease bacterium not present high USDA Plant/Pest
Passer domesticus House sparrow vertebrate bird widespread n/a (already in CA) Cal Code 14:671
Mus musculus House mouse vertebrate mammal widespread n/a (already in CA) Cal Code 14:671
Cynoglossum officinale houndstongue 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
Unknown pathogenic virus 12 Horsechestnut Yellow Mosaic Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Unknown pathogenic virus 11 Horsechestnut Variegation Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Aphtae epizooticae Hoof and mouth disease disease virus not present moderate CDFA AHFSS
Tropilaelaps clareae honeybee mite arthropod mite not present high USDA Plant/Pest
Gleditsia triacanthus honey locust plant woody limited n/a (already in CA) Med. plants list
Acarapis woodi honey bee tracheal mite arthropod widespread n/a (already in CA) USDA Plant/Pest
Dynaspidiotus britannicus holly scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Phytomyza ilicis holly leafminer arthropod fly limited n/a (already in CA) CDFA (reg. B)
Solanum physalifolium hoe nightshade plant herbaceous widespread n/a (already in CA) Weeds of CA
Cardaria draba hoary cress plant herbaceous widespread n/a (already in CA) CDFA
Anolis chlorocyanus Hispaniolan green anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Hemitragus jemlahicus Himalayan tahr vertebrate mammal VALUE REQUIRED n/a (already in CA) DFG Code 2118
Tetragallus himalayensis Himalayan snowcock vertebrate bird VALUE REQUIRED VALUE REQUIRED Harmful U.S. NIS
Polygonum polystachyum Himalayan knotweed plant herbaceous limited n/a (already in CA) CDFA
Rubus armeniacus Himalaya blackberry plant woody widespread n/a (already in CA) CDFA
Gracula religiosa Hill mynah vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Influenzavirus hpav Highly Pathogenic Avian Influenza disease virus VALUE REQUIRED VALUE REQUIRED CDFA AHFSS
Malva sylvestris high mallow plant herbaceous widespread n/a (already in CA) Weeds of CA
Conotrachelus spp. hidden snout weevils arthropod beetle not present moderate USDA Plant/Pest
Cydia caryana hickory shuckworm arthropod butterfly, moth not present moderate CDFA (reg. A)
Unknown pathogenic virus 10 Hibiscus Leaf Curl Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Clavaspis herculeana herculeana scale arthropod scale, aphid not present high CDFA (reg. A)
Geranium robertianum Herb-robert plant herbaceous limited n/a (already in CA) Med. plants list
Paramyxovirus hv Hendra Virus disease virus VALUE REQUIRED VALUE REQUIRED CDC
Lamium amplexicaule henbit deadnettle plant herbaceous widespread n/a (already in CA) Weeds of CA
Numida meleagris Helmeted guineafowl vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Torilis arvensis hedgeparsley plant herbaceous widespread n/a (already in CA) Cal-IPC list
Cynosurus echinatus hedgehog dogtailgrass plant grass widespread n/a (already in CA) Cal-IPC list
Ehrlichia ruminantium Heartwater; cowdriosis disease bacterium not present moderate Merck Vet Manual
Monochoria vaginalis heartshape false pickerelweed plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Solanum cardiophyllum heartleaf nightshade plant herbaceous not present low CDFA
Curculio nucum hazelnut weevil arthropod beetle not present high USDA Plant/Pest
Crataegus monogyna hawthorn plant woody limited n/a (already in CA) Cal-IPC list
Picris hieracioides hawkweed oxtongue plant herbaceous not present moderate WA Weed List
Euryops multifidus hawk's eye plant woody not present high AZ Weed List
Helicoverpa hawaiiensis Hawaiian bud moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Peganum harmala harmel plant herbaceous not present high No list
Phalaris aquatica hardinggrass plant grass widespread n/a (already in CA) Cal-IPC list
Halogeton glomeratus halogeton plant herbaceous limited n/a (already in CA) CDFA
Nilotaspis halli Hall scale arthropod scale, aphid not present high CDFA (reg. A)
Epilobium hirsutum hairy willow herb plant herbaceous not present high WA Weed List
Cardaria pubescens hairy whitetop plant herbaceous limited n/a (already in CA) CDFA
Vicia villosa hairy vetch plant herbaceous widespread n/a (already in CA) Weeds of CA
Fatoua villosa hairy crabwees plant herbaceous limited n/a (already in CA) CDFA
Digitaria sanguinalis hairy crabgrass plant grass widespread n/a (already in CA) Weeds of CA
Lymantria dispar Gypsy moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Anastrepha striata guava fruit fly arthropod fly not present low CDFA (reg. A)
Bactrocera correcta Guava fruit fly arthropod fly not present moderate CDFA (reg. A)
Unknown pathogenic phytoplasma 4 Groundnut witches broom disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Umbravirus grv Groundnut Rosette Viruses disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Potexvirus gcsv Groundnut Chlorotic Spotting Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Birnaviridae Groundnut Chlorotic Leaf Streak Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Argyrotaenia pulchellana grey red-barred twist arthropod butterfly, moth not present low USDA Plant/Pest
Perdix perdix Grey partridge vertebrate bird VALUE REQUIRED VALUE REQUIRED Harmful U.S. NIS
Francolinus pondicerianus Grey francolin vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Eleutherodactylus planirostris Greenhouse frog vertebrate amphibian VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Amazona viridigenalis Green-cheeked Amazon vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Dendrobates auratus Green-and-black poison dart frog vertebrate amphibian VALUE REQUIRED VALUE REQUIRED Witmer et al
Mononychellus tanajoa green spider mite arthropod mite not present moderate USDA Plant/Pest
Pulvinaria psidii green shield scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Coccus viridis Green scale arthropod scale, aphid not present high CDFA (reg. A)
Iguana iguana Green iguana vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Chrysodeixis eriosoma green garden looper arthropod butterfly, moth not present low CDFA (reg. A)
Rana clamitans Green frog vertebrate amphibian VALUE REQUIRED VALUE REQUIRED Witmer et al
Carcinus maenas Green crab invertebrate crustaceans and tunicates limited n/a (already in CA) NISIC
Acanalonia conica green coneheaded planthopper arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Plathypena scabra green cloverworm arthropod butterfly, moth not present moderate CDFA (reg. A)
Setaria viridis green bristlegrass plant grass widespread n/a (already in CA) Weeds of CA