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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
Ovis aries Feral sheep vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Columba livia Feral pigeon vertebrate bird widespread high Witmer et al
Sus scrofa Feral pig vertebrate mammal widespread n/a (already in CA) Cal Code 14:671
Capra hircus Feral goat vertebrate mammal VALUE REQUIRED n/a (already in CA) ISSG 100WorstIAS
Canis familiaris Feral dog vertebrate mammal limited high Cal Code 14:671
Felis catus Feral cat vertebrate mammal widespread n/a (already in CA) Cal Code 14:671
Foeniculum vulgare fennel plant herbaceous widespread n/a (already in CA) Cal-IPC list
Pennisetum villosum feathergrass plant grass limited n/a (already in CA) No list
Pseudoparlatoria parlatoriodes false paralatoria scale arthropod scale, aphid not present high CDFA (reg. A)
Lepyrodiclis holosteoides false jagged-chickweed plant herbaceous not present low WA Weed List
Brevipalpus chilensis false grape mite arthropod mite not present high USDA Plant/Pest
Nothoscordum inodorum false garlic plant herbaceous limited n/a (already in CA) CDFA
Cryptophlebia leucotreta false codling moth arthropod butterfly, moth not present high CDFA (reg. A)
Thaumatotibia leucotreta False codling moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Cervus dama Fallow deer vertebrate mammal limited n/a (already in CA) Cal Code 14:671
Cylas spp. exotic weevil arthropod beetle not present moderate CDFA (reg. A)
Diaprepes sp. exotic weevil arthropod beetle not present high CDFA (reg. A)
Paramyxovirus-1 (PMV-1) Exotic newcastle disease (END) disease virus not present high National IS Info
Avulavirus ndv Exotic Newcastle Disease disease virus not present moderate CDFA AHFSS
Lymantria spp. exotic moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Anastrepha sp. exotic fruit fly arthropod fly not present high CDFA (reg. A)
Bactrocera spp. exotic fruit fly arthropod fly limited n/a (already in CA) CDFA (reg. A)
Dacus sp. exotic fruit fly arthropod fly not present moderate CDFA (reg. A)
Rhagoletis spp. exotic fruit fly arthropod fly unknown moderate CDFA (reg. A)
Sparganium erectum exotic bur reed plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Eumerus aurifrons exotic bulb fly arthropod fly unknown VALUE REQUIRED CDFA (reg. A)
Euvarroa sinhai Euvarroa sinhai arthropod mite not present high USDA Plant/Pest
Lachnellula willkommii Eurpoean larch canker disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Tenuivirus ewsmv European Wheat Striate Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Passer montanus European tree sparrow vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Phytoplasma esfy European Stone Fruit Yellows disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Sturnus vulgaris European starling vertebrate bird widespread n/a (already in CA) Cal Code 14:671
Cakile maritima European sea-rocket plant herbaceous widespread n/a (already in CA) Cal-IPC list
Oryctolagus cuniculus European rabbit vertebrate mammal VALUE REQUIRED n/a (already in CA) Lacey Act
Mustela putorius European polecat or ferret vertebrate mammal limited n/a (already in CA) Cal Code 14:671
Rhyacionia buoliana European pine shoot moth arthropod butterfly, moth not present high CDFA (reg. A)
Viscum album European mistletoe plant herbaceous limited n/a (already in CA) CDFA
Erinaceus europaeus European hedgehog vertebrate mammal not present low Cal Code 14:671
Lepus europaeus European hare vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Lobesia botrana European Grapevine Moth arthropod butterfly, moth limited n/a (already in CA) USDA Plant/Pest
Quadraspidiotus ostreaeformis European fruit scale arthropod scale, aphid not present high CDFA (reg. A)
Hydrocharis morsus-ranae European frog-bit plant herbaceous not present moderate WA Weed List
Tipula paludosa European crane fly arthropod fly limited n/a (already in CA) CDFA (reg. B)
Ostrinia nubilalis European corn borer arthropod butterfly, moth not present high CDFA (reg. A)
Rhagoletis cerasi European cherry fruit fly arthropod fly not present low CDFA (reg. A)
Rhizotrogus majalis European chafer arthropod beetle not present moderate CDFA (reg. A)
Ammophila arenaria European beachgrass plant grass widespread n/a (already in CA) Cal-IPC list
Phytoplasma eay European Aster Yellows disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Myriophyllum spicatum Eurasian watermilfoil plant herbaceous widespread n/a (already in CA) Cal-IPC list
Streptopelia decaocto Eurasian collared dove vertebrate bird not present high Cal Code 14:671
Unaspis euonymi euonymus scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Unknown pathogenic virus 2 Euonymus Mosaic Agents disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Phoracantha spp. eucalyptus (longhorned) borer arthropod beetle limited n/a (already in CA) CDFA (reg. B)
Quadrastichus erythrinae Erythrnia gall wasp arthropod bee, wasp not present high FL Dept. of Ag
Francolinus erkelii Erkel’s francolin vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Ehrharta erecta erect veldtgrass plant grass limited n/a (already in CA) Cal-IPC list
Hedera helix English ivy plant woody widespread n/a (already in CA) Cal-IPC list
Hedera hibernica English ivy plant woody not present high WA Weed List
Ilex aquifolium English holly plant woody limited n/a (already in CA) Cal-IPC list
Agrilus planipennis emerald ashborer     arthropod beetle not present high CDFA (reg. A)
Phytoplasma ulmi Elm yellows disease phytoplasma VALUE REQUIRED VALUE REQUIRED No list
Chionaspis americana elm scurfy scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Llarvirus emov Elm Mottle Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Septoria melanosa Elenk fungus disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Icerya aegyptiaca Egyptian fluted scale arthropod scale, aphid not present moderate USDA Plant/Pest
Spodoptera littoralis Egyptian cottonworm arthropod butterfly, moth not present high CDFA (reg. A)
Leucinodes orbonalis eggplant fruit borer arthropod butterfly, moth not present moderate CDFA (reg. A)
Vallisneria spp. eelgrass plant herbaceous not present high CDFA
Lymire edwardsii Edwards' wasp moth arthropod butterfly, moth not present low CDFA (reg. A)
Aerodramus fuciphagus Edible-nest swiftlet vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Ficus carica edible fig plant woody widespread n/a (already in CA) Cal-IPC list
Oryzavirus ersv Echinochloa Ragged Stunt Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ambystoma tigrinum Eastern Tiger Salamander vertebrate amphibian limited high Cal Code 14:671
Malacosoma americanum eastern tent caterpillar arthropod butterfly, moth not present high CDFA (reg. A)
Pissodes nemorensis eastern pine weevil arthropod beetle not present high CDFA (reg. A)
Ilynassa obsoleta Eastern mudsnail invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Alphavirus eeev Eastern Equine Encephalitis Virus disease virus not present low Chavarria NRDC
Cuscuta monogyna Eastern Dodder plant herbaceous not present low No list
Echinochloa oryzicola early watergrass plant grass limited n/a (already in CA) Weeds of CA
Isatis tinctoria dyer's woad plant herbaceous widespread n/a (already in CA) CDFA
Chaenorhinum minus dwarf snapdragon plant herbaceous not present moderate WA Weed List
Ceratocystis (Ophiostoma) ulmi Dutch elm disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ophiostoma (Ceratocystis) ulmi Dutch elm disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Sesamia cretica durra stalk borer arthropod butterfly, moth not present moderate CDFA (reg. A)
Sinoxylon anale dunnage beetle arthropod beetle not present high CDFA (reg. A)
Tymovirus dmv Dulcamara Mottle Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cucumis melo var. duriam dudaim melon plant herbaceous limited n/a (already in CA) CDFA
Ottelia alismoides ducklettuce plant herbaceous not present high USDA Plant/Pest
Gaura drummondii Drummond's gaura plant herbaceous limited n/a (already in CA) CDFA
Peronosclerospora maydis Downy Mildew of Corn/ Select agent disease oomycete VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Bromus tectorum downy brome plant grass widespread n/a (already in CA) Cal-IPC list
Phacidiopycnis pseudotsuga Douglas Fir Canker disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Discula destructiva Dogwood Anthracnose disease fungus not present moderate ISSG Global InvS
Cuscuta spp. (C. japonica, reflexa, australia, monogyna) Dodder (non-native spp.) plant herbaceous limited n/a (already in CA) CDFA
Sphaeropsis sapinea Diplodia Shoot Blight disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Digitaria abyssinica Digitaria abyssinica plant grass not present moderate OR Weed List
Centaurea diffusa diffuse knapweed plant herbaceous limited n/a (already in CA) CDFA
Didymosphenia geminata didymo plant algae limited high Hoffman NOAA
Diaprepes abbreviatus Diaprepes root weevil arthropod beetle limited n/a (already in CA) CDFA (reg. A)
Nerodia rhombifer Diamondback water snake vertebrate reptile not present high Cal Code 14:671