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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 Name Type Subtype Extentsort icon Risk of Introduction First Source
Sirex noctilio sirex woodwasp arthropod bee, wasp not present moderate CDFA (reg. A)
Sminthurus viridus lucerne flea arthropod springtail not present low USDA Plant/Pest
Sogatodes orizicola rice delphacid arthropod scale, aphid not present moderate CDFA (reg. A)
Solenopsis geminata tropical fire ant arthropod bee, wasp not present high CDFA (reg. A)
Solenopsis richteri X Solenopsis invicta hybrid hybrid fire ant arthropod bee, wasp not present high CDFA (reg. A)
Solenopsis saevissima red imported fire ant arthropod bee, wasp not present moderate CDFA (reg. A)
Sphenophorus maidis maize billbug arthropod beetle not present moderate CDFA (reg. A)
Spodoptera dolichos armyworm arthropod butterfly, moth not present high CDFA (reg. A)
Spodoptera eridania southern armyworm arthropod butterfly, moth not present high CDFA (reg. A)
Spodoptera exempta nutgrass armyworm arthropod butterfly, moth not present high CDFA (reg. A)
Spodoptera latifascia lateral lined armyworm arthropod butterfly, moth not present high CDFA (reg. A)
Spodoptera littoralis Egyptian cottonworm arthropod butterfly, moth not present high CDFA (reg. A)
Spodoptera mauritia lawn armyworm arthropod butterfly, moth not present high CDFA (reg. A)
Spodoptera sunia Costa Rican armyworm arthropod butterfly, moth not present high CDFA (reg. A)
Steneotarsonemus spinki panicle rice mite arthropod mite not present high CDFA (reg. A)
Stenoma catenifer avocado seed moth arthropod butterfly, moth not present high CDFA (reg. A)
Sternochetus mangiferae mango seed weevil arthropod beetle not present moderate USDA Plant/Pest
Syngrapha epigaea inscribed looper moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Thaumatotibia leucotreta False codling moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Thrips angusticeps cabbage thrips arthropod thrips not present high CDFA (reg. A)
Thrips florum banana flower thrips arthropod thrips not present high CDFA (reg. A)
Thrips palmi melon thrips arthropod thrips not present high CDFA (reg. A)
Thyridopteryx ephemeraeformis bagworm arthropod butterfly, moth not present high CDFA (reg. A)
Tildenia gudmannella pepper flower bud moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Tipula oleracea common crane fly arthropod fly not present low CDFA (reg. B)
Tischeria marginata moth arthropod butterfly, moth not present low CDFA (reg. A)
Tomicus piniperda pine shoot beetle arthropod beetle not present high CDFA (reg. A)
Toxoptera citricida Brown citrus aphid arthropod scale, aphid not present high CDFA (reg. A)
Toxotrypana curvicauda papaya fruit fly arthropod fly not present moderate CDFA (reg. A)
Trialeurodes floridensis avocado whitefly arthropod scale, aphid not present high CDFA (reg. A)
Trioza tripunctata blackberry psyllid arthropod scale, aphid not present moderate CDFA (reg. A)
Trogoderma granarium khapra beetle arthropod beetle not present moderate CDFA (reg. A)
Tropilaelaps clareae honeybee mite arthropod mite not present high USDA Plant/Pest
Typophorus nigritus viridicyaneus sweetpotato leaf beetle arthropod beetle not present moderate CDFA (reg. A)
Unaspis citri citrus snow scale arthropod scale, aphid not present moderate CDFA (reg. A)
Velataspis dentata dentate scale arthropod scale, aphid not present moderate CDFA (reg. A)
Xyleborinus andrewesi Asian ambrosia beetle arthropod beetle not present high CDFA (reg. A)
Xyleborus glabratus Redbay ambrosia beetle arthropod beetle not present high CDFA (reg. A)
Xyleborus spp. ambrosia beetles arthropod beetle not present moderate USDA Plant/Pest
Zeiraphera canadensis spruce budworm arthropod butterfly, moth not present moderate CDFA (reg. A)
Zeuzera pyrina leopard moth arthropod butterfly, moth not present high CDFA (reg. A)
Zonosemata electa pepper maggot arthropod fly not present moderate CDFA (reg. A)
Zophodia convolutella gooseberry fruitworm arthropod butterfly, moth not present moderate CDFA (reg. A)
Zygogramma exclamationis sunflower beetle arthropod beetle not present moderate CDFA (reg. A)
Limnoperna fortunei Golden mussel invertebrate aquatic mollusk, freshwater not present low ANSIS
Orconectes rusticus Rusty crayfish invertebrate crustaceans and tunicates not present high NISIC
Trichosurus vulpecula Brush-tailed possum vertebrate mammal not present low Lacey Act
Pteropus spp. Flying fox vertebrate mammal not present low Cal Code 14:671
Dasypus novemcinctus Nine-banded armadillo vertebrate mammal not present high Cal Code 14:671
Cynomys ludovicianus Prairie dog vertebrate mammal not present low CDFA Vert List
Cricetomys gambianus Gambian giant pouched rat vertebrate mammal not present low Cal Code 14:671
Mastomys spp. Multimammate rat or mouse vertebrate mammal not present low Lacey Act
Meriones unguiculatus Mongolian gerbil vertebrate mammal not present moderate CDFA Vert List
Streptopelia decaocto Eurasian collared dove vertebrate bird not present high Cal Code 14:671
Padda oryzivora Java sparrow vertebrate bird not present low Lacey Act
Quelea quelea Red-billed quelea vertebrate bird not present low Cal Code 14:671
Acridotheres cristatellus Crested mynah vertebrate bird not present low Cal Code 14:671
Bufo marinus Giant toad vertebrate amphibian not present high Cal Code 14:671
Eleutherodactylus coqui Coqui frog vertebrate amphibian not present high Cal Code 14:671
Osteopilus septentrionalis Cuban treefrog vertebrate amphibian not present low Cal Code 14:671
Glandirana rugosa Japanese wrinkled frog vertebrate amphibian not present moderate Witmer et al
Chelydra serpentine Snapping turtle vertebrate reptile not present moderate Cal Code 14:671
Caiman crocodilus Spectacled caiman vertebrate reptile not present high Cal Code 14:671
Anolis equestris Knight anole vertebrate reptile not present high Cal Code 14:671
Anolis sagrei Brown anole vertebrate reptile not present high Cal Code 14:671
Ctenosaura similis Black spinytail iguana vertebrate reptile not present high Cal Code 14:671
Ctenosaura pectinata Mexican spinytail iguana vertebrate reptile not present moderate Cal Code 14:671
Gekko gecko Tokay gecko vertebrate reptile not present high Cal Code 14:671
Varanus niloticus Nile monitor vertebrate reptile not present moderate Cal Code 14:671
Tupinambis merianae Argentina giant tegu vertebrate reptile not present high Cal Code 14:671
Python molurus Burmese python vertebrate reptile not present moderate Cal Code 14:671
Nerodia rhombifer Diamondback water snake vertebrate reptile not present high Cal Code 14:671
Boiga irregularis Brown treesnake vertebrate reptile not present high Cal Code 14:671
Amia calva Bowfin vertebrate fish not present high Cal Code 14:671
Serrasalminae Piranha vertebrate fish not present high FL FWCC NNS List
Clarias batrachus Walking catfish vertebrate fish not present moderate Cal Code 14:671
Scardinius erythropthalmus Rudd vertebrate fish not present high Harmful U.S. NIS
Lepstosteus lucius Longnose Gar vertebrate fish not present high Cal Code 14:671
Channa argus Northern Snakehead vertebrate fish not present moderate Cal Code 14:671
Neogobius melanostomus Round goby vertebrate fish not present moderate NISIC
Gymnocephalus cernuus Ruffe vertebrate fish not present moderate Harmful U.S. NIS
Esox lucius Northern Pike vertebrate fish not present high Cal Code 14:671
Aeginetia spp. aeginetia plant herbaceous not present moderate USDA Plant/Pest
Alectra spp. alectra plant herbaceous not present moderate USDA Plant/Pest
Allaria petiolata garlic mustard plant herbaceous not present high OR Weed List
Alternanthera sessilis sessile joyweed plant herbaceous not present moderate USDA Plant/Pest
Ambrosia tomentosa skeletonleaf bursage plant herbaceous not present high ID Weed List
Anthriscus sylvestris wild chervil plant herbaceous not present high WA Weed List
Azolla pinnata mosquito fern plant herbaceous not present moderate USDA Plant/Pest
Bryonia alba white bryony plant herbaceous not present moderate WA Weed List
Butomus umbellatus flowering rush plant herbaceous not present high WA Weed List
Carum carvi wild caraway plant herbaceous not present high CO Weed List
Centaurea macrocephala bighead knapweed plant herbaceous not present moderate WA Weed List
Chaenorhinum minus dwarf snapdragon plant herbaceous not present moderate WA Weed List
Chrysopogon aciculatus pilipiliula plant grass not present low USDA Plant/Pest
Clematis orientalis Chinese clematis plant herbaceous not present high CO Weed List
Crassula helmsii Australian swamp stonecrop plant herbaceous not present low WA Weed List
Digitaria velutina velvet fingergrass plant grass not present moderate USDA Plant/Pest
Dipsacus laciniatus cutleaf teasel plant herbaceous not present high CO Weed List
Eichhornia azurea anchored water hyacinth plant herbaceous not present low USDA Plant/Pest