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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
Pterandrus spp. fruit flies arthropod fly limited high USDA Plant/Pest
Amphitetranychus viennensis fruit tree spider mite arthropod mite not present high USDA Plant/Pest
Dipsacus sativus fuller's teasel plant herbaceous widespread n/a (already in CA) Cal-IPC list
Cordyceps spp. Fungal Disease of Bees disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Fusarium graminearium Fusarium Head Blight disease fungus limited VALUE REQUIRED APHIS OPIS
Fusarium oxysporum f. sp. vasinfectum Fusarium Wilt of Cotton disease fungus limited n/a (already in CA) National IS Info
Fusarium oxysporum f.sp. fragariae Fusarium wilt of strawberry disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Cricetomys gambianus Gambian giant pouched rat vertebrate mammal not present low Cal Code 14:671
Lysimachia vulgaris garden loosestrife plant herbaceous not present high WA Weed List
Vicia sativa garden vetch plant herbaceous widespread n/a (already in CA) Weeds of CA
Brachycerus spp. garlic beetles arthropod beetle not present moderate USDA Plant/Pest
Allaria petiolata garlic mustard plant herbaceous not present high OR Weed List
Oryx gazelle Gemsbok vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Ralstonia solanacearum race 3 biovar 2 Geranium Bacterial Wilt/Select Agent disease bacterium not present VALUE REQUIRED NAPPO
Ameiva ameiva Giant ameiva vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Myosoton aquaticum giant chickweed plant herbaceous not present moderate CDFA
Phelsuma madagascariensis Giant day gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cuscuta reflexa giant dodder plant herbaceous not present low CDFA
Cordyline australis giant dracaena plant herbaceous limited n/a (already in CA) Cal-IPC list
Setaria faberi giant foxtail plant grass widespread n/a (already in CA) CDFA
Heracleum mantegazzianum giant hogweed plant herbaceous not present high CDFA
Ambrosia trifida giant ragweed plant herbaceous limited n/a (already in CA) CDFA
Arundo donax giant reed plant grass widespread n/a (already in CA) Cal-IPC list
Salvinia auriculata giant salvinia plant herbaceous not present low USDA Plant/Pest
Salvinia molesta giant salvinia plant herbaceous limited n/a (already in CA) Cal-IPC list
Salvinia biloba giant salvinia plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Salvinia herzogii giant salvinia plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Mimosa diplotricha giant sensitive plant plant woody not present low OR Weed List
Mimosa invisa giant sensitive plant plant woody not present low USDA Plant/Pest
Bufo marinus Giant toad vertebrate amphibian not present high Cal Code 14:671
Cnemidophorus motaguae Giant whiptail lizard vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cacatua goffini Giffin’s cockatoo vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Ferrisia gilli Gill’s mealybug arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Dorosoma cepedianum Gizzard shad vertebrate fish not present low Cal Code 14:671
Uromyces transversalis Gladiolus Rust disease fungus limited n/a (already in CA) USDA pest
Homalodisca vitripennis glassy-winged sharpshooter arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Melanomma glumarum Glume Blotch disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Galega officinalis goatsrue plant herbaceous not present moderate USDA Plant/Pest
Phelsuma laticauda Gold dust day gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Limnoperna fortunei Golden mussel invertebrate aquatic mollusk, freshwater not present low ANSIS
Globodera rostochiensis Golden Nematode invertebrate nematode not present low CDFA (reg. A)
Agrilus coxalis golden spotted oak borer arthropod beetle limited n/a (already in CA) pest of concern
Scolymus hispanicus golden thistle plant herbaceous limited n/a (already in CA) CDFA
Chrysodeixis chalcites golden twin spot moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Zophodia convolutella gooseberry fruitworm arthropod butterfly, moth not present moderate CDFA (reg. A)
Ulex europaeus gorse plant woody limited n/a (already in CA) CDFA
Uredo dioscoreae-alatae Graminicolous Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Uredo gladioli-buettneri Graminicolous Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Endopiza viteana grape berry moth arthropod butterfly, moth not present high CDFA (reg. A)
Contarinia johnsoni grape blossum midge arthropod fly not present low CDFA (reg. A)
Physalis viscosa grape groundcherry plant herbaceous limited n/a (already in CA) CDFA
Harrisina americana grapeleaf skeletonizer arthropod butterfly, moth not present high CDFA (reg. A)
Tombusvirus galv Grapevine Algerian Latent Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xylophilus ampelinus (Xanthomonas ampelina) Grapevine Bacterial Blight disease bacterium not present moderate EPPO
Trichovirus ginv Grapevine Berry Inner Necrosis Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Unknown pathogenic virus 4 Grapevine Bratislava Mosaic Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus gblv Grapevine Bulgarian Latent Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Unknown pathogenic virus 5 Grapevine Chasselas Latent Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus gcmv Grapevine Chrome Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Xanthomonas populi Grapevine Infectious Necrosis Bacterium disease bacterium VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Unknown pathogenic virus 6 Grapevine Little Leaf Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus gtrsv Grapevine Tunisian Ringspot Virus disease virus not present low APHIS OPIS
Unknown pathogenic virus 7 Grapevine Vein Mosaic Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Unknown pathogenic virus 8 Grapevine Vein Necrosis Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Unknown pathogenic virus 9 Grapevine vein yellow agent disease virus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Unknown pathogenic phytoplasma 3 Grapevine Vergelbungskrankheit disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Apscaviroid 3 Grapevine yellow speckle viroid disease virus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Candidatus phytoplasma spp. Grapevine Yellows Disease disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Rhopalomyzus poae grass aphid arthropod scale, aphid widespread n/a (already in CA) CDFA (reg. B)
Siteroptes graminum grass mite arthropod mite limited n/a (already in CA) CDFA (reg. B)
Pachynematus extensicornis grass sawfly arthropod bee, wasp limited n/a (already in CA) CDFA (reg. B)
Aclerda tokionis grass scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Sagittaria graminea grass-leaved arrowhead plant herbaceous not present high WA Weed List
Sciurus carolinensis Gray squirrel vertebrate mammal VALUE REQUIRED VALUE REQUIRED ISSG 100WorstIAS
Garrulax pectoralis Greater necklaced laughing thrush vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cladophora spp. green algae plant algae limited VALUE REQUIRED Hoffman NOAA
Anolis carolinensis Green anole vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Musculista senhousia Green bagmussel invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Setaria viridis green bristlegrass plant grass widespread n/a (already in CA) Weeds of CA
Plathypena scabra green cloverworm arthropod butterfly, moth not present moderate CDFA (reg. A)
Acanalonia conica green coneheaded planthopper arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Carcinus maenas Green crab invertebrate crustaceans and tunicates limited n/a (already in CA) NISIC
Rana clamitans Green frog vertebrate amphibian VALUE REQUIRED VALUE REQUIRED Witmer et al
Chrysodeixis eriosoma green garden looper arthropod butterfly, moth not present low CDFA (reg. A)
Iguana iguana Green iguana vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Coccus viridis Green scale arthropod scale, aphid not present high CDFA (reg. A)
Pulvinaria psidii green shield scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Mononychellus tanajoa green spider mite arthropod mite not present moderate USDA Plant/Pest
Dendrobates auratus Green-and-black poison dart frog vertebrate amphibian VALUE REQUIRED VALUE REQUIRED Witmer et al
Amazona viridigenalis Green-cheeked Amazon vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Eleutherodactylus planirostris Greenhouse frog vertebrate amphibian VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Francolinus pondicerianus Grey francolin vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Perdix perdix Grey partridge vertebrate bird VALUE REQUIRED VALUE REQUIRED Harmful U.S. NIS
Argyrotaenia pulchellana grey red-barred twist arthropod butterfly, moth not present low USDA Plant/Pest
Birnaviridae Groundnut Chlorotic Leaf Streak Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Potexvirus gcsv Groundnut Chlorotic Spotting Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Umbravirus grv Groundnut Rosette Viruses disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Unknown pathogenic phytoplasma 4 Groundnut witches broom disease phytoplasma VALUE REQUIRED VALUE REQUIRED APHIS OPIS
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)