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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 Typesort icon Subtype Extent Risk of Introduction First Source
Sphaerodactylus argus Ocellated gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Phelsuma laticauda Gold dust day gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Phelsuma madagascariensis Giant day gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Phelsuma guimbeaui Orange-spotted day gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Tarentola mauritanica Moorish gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Tarentola annularis Ringed wall gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Lepidodactylus lugubris Mourning gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Gehyra mutilata Multilating gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Cyrtopodion scabrum Rough-tailed gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Gekko gecko Tokay gecko vertebrate reptile not present high Cal Code 14:671
Hemidactylus frenatus Common house gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Hemidactylus mabouia Tropical house gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Hemidactylus platyurus Asian flat-tailed 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
Hemidactylus turcicus Mediterranean gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Gonatodes albogularis Yellow-headed gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Hemiphyllodactylus typus Indo-Pacific tree gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Lipinia noctua Moth skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Emoia impar Azure-tailed skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Emoia cyanura Copper-tailed skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Mabuya multifasciata Many-lined grass skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Cryptoblepharus poecilopleurus Pacific snake-eyed skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Lampropholis delicate Plague skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Lacerta bilineata Western green lacerta vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
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
Boa constrictor Common boa vertebrate reptile limited n/a (already in CA) Cal Code 14:671
Python molurus Burmese python vertebrate reptile not present moderate Cal Code 14:671
Ramphotyphlops braminus Brahminy blind snake vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Acrochordus javanicus Javan filesnake vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
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
Molothrus ater Brown-headed cowbird vertebrate bird widespread n/a (already in CA) Cal Code 14:671
Morone chrysops White bass vertebrate fish limited n/a (already in CA) Cal Code 14:671
Zosterops japonica Japanese White-eye vertebrate bird not present high Cal Code 14:671
Agkistrodon spp. Copperhead snake vertebrate reptile not present low DFG Code 2118
Erinaceus europaeus European hedgehog vertebrate mammal not present low Cal Code 14:671
Mephitis mephitis Skunk vertebrate mammal widespread n/a (already in CA) Cal Code 14:671
Hypophthalmichthys nobilis Bighead Carp vertebrate fish not present high Lacey Act
Cichlasoma spilurum Blue-eyed cichlid vertebrate fish not present high Cal Code 14:671
Cichlasoma salvini Yellowbelly cichlid vertebrate fish not present low Cal Code 14:671
Mylopharyngodon piceus Black Carp vertebrate fish not present high Cal Code 14:671
Hypophthalmichthys harmandi Largescale Carp vertebrate fish not present moderate Cal Code 14:671
Hypophthalmichthys molitrix Silver Carp vertebrate fish not present moderate Cal Code 14:671
Nerodia fasciata Southern Watersnake vertebrate reptile limited high Cal Code 14:671
Lepisosteus osseus Longnose Gar vertebrate fish not present moderate Cal Code 14:671
Dorosoma cepedianum Gizzard shad vertebrate fish not present low Cal Code 14:671
Monopterus albus Asian swamp eel vertebrate fish not present low Cal Code 14:671
Porphyrio porphyrio Purple Swamphen vertebrate bird not present high Cal Code 14:671
Threskiornis aetheopicus Sacred Ibis vertebrate bird not present high Cal Code 14:671
Phragmites australis common reed plant grass limited n/a (already in CA) Cal-IPC list
Zygophyllum fabago Syrian beancaper plant herbaceous limited n/a (already in CA) CDFA
Arctium minus common burdock plant herbaceous limited n/a (already in CA) CO Weed List
Oryza rufipogon red rice plant grass limited n/a (already in CA) CDFA
Caulerpa taxifolia Mediterranean strain plant algae limited high OR Weed List
Euphorbia serrata serrate spurge plant herbaceous not present moderate CDFA
Halimodendron halodendron Russian salttree plant woody not present moderate CDFA
Helianthus ciliaris blueweed plant herbaceous limited n/a (already in CA) CDFA
Salsola collina spineless Russian thistle plant herbaceous not present high CDFA
Salsola vermiculata wormleaf salsola plant herbaceous not present low CDFA
Salvia virgata southern meadow sage plant herbaceous not present moderate CDFA
Scolymus hispanicus golden thistle plant herbaceous limited n/a (already in CA) CDFA
Senecio squalidus Oxford ragwort plant herbaceous not present low CDFA
Solanum cardiophyllum heartleaf nightshade plant herbaceous not present low CDFA
Solanum dimidiatum Torrey's nightshade plant herbaceous limited n/a (already in CA) CDFA
Solanum marginatum white-margined nightshade plant woody limited n/a (already in CA) CDFA
Sonchus arvensis perennial sowthistle plant herbaceous limited n/a (already in CA) CDFA
Sphaerophysa salsula Austrian peaweed plant herbaceous limited n/a (already in CA) CDFA
Striga asiatica witchweed plant herbaceous not present moderate CDFA
Tagetes minuta wild marigold plant herbaceous not present moderate CDFA
Abutilon theophrasti velvet leaf plant herbaceous widespread n/a (already in CA) Weeds of CA
Acroptilon repens Russian knapweed plant herbaceous widespread n/a (already in CA) MT Weed List
Aegilops triuncialis barb goatgrass plant grass widespread n/a (already in CA) CDFA
Ageratina adenophora croftonweed plant herbaceous limited n/a (already in CA) Cal-IPC list
Agrostis avenacea Pacific bentgrass plant grass limited n/a (already in CA) Cal-IPC list
Agrostis stolonifera creeping bentgrass plant grass limited n/a (already in CA) Cal-IPC list
Ailanthus altissima tree-of-heaven plant woody widespread n/a (already in CA) Cal-IPC list
Amaranthus albus prostrate pigweed plant herbaceous widespread n/a (already in CA) Weeds of CA
Amaranthus hybridus slim amaranth plant herbaceous widespread n/a (already in CA) Weeds of CA
Amaranthus retroflexus redroot amaranth plant herbaceous widespread n/a (already in CA) Weeds of CA
Ammophila arenaria European beachgrass plant grass widespread n/a (already in CA) Cal-IPC list
Anoda cristata spurred anoda plant herbaceous limited n/a (already in CA) CO Weed List
Anthemis cotula mayweed chamomile plant herbaceous widespread n/a (already in CA) CO Weed List
Anthoxanthum odoratum sweet vernalgrass plant grass widespread n/a (already in CA) Cal-IPC list
Arctotheca calendula (sterile) sterile capeweed plant herbaceous limited n/a (already in CA) CDFA
Arundo donax giant reed plant grass widespread n/a (already in CA) Cal-IPC list
Atriplex semibaccata Australian saltbush plant herbaceous 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
Avena fatua wild oat plant grass widespread n/a (already in CA) Cal-IPC list
Bassia hyssopifolia fivehook bassia plant herbaceous limited n/a (already in CA) Cal-IPC list
Bellardia trixago bellardia plant herbaceous limited n/a (already in CA) Cal-IPC list