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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 Namesort icon Common Name Type Subtype Extent Risk of Introduction First Source
Amazona finschi Lilac-crowned parrot vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Amazona aestiva Blue-fronted Amazon vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Amaranthus retroflexus redroot amaranth 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 albus prostrate pigweed plant herbaceous widespread n/a (already in CA) Weeds of CA
Amandava amandava Red avadavat vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Alyssum murale yellowtuft plant herbaceous not present moderate OR Weed List
Alyssum corsicum yellowtuft plant herbaceous not present moderate OR Weed List
Alternanthera sessilis sessile joyweed plant herbaceous not present moderate USDA Plant/Pest
Alternanthera philoxeroides alligator weed plant herbaceous limited n/a (already in CA) Cal-IPC list
Alphavirus veev Venezuelan Equine Encephalitis Virus disease virus not present low NIAID
Alphavirus eeev Eastern Equine Encephalitis Virus disease virus not present low Chavarria NRDC
Alopecurus myosuroides blackgrass plant grass limited n/a (already in CA) WA Weed List
Allium vineale wild garlic plant herbaceous limited n/a (already in CA) CDFA
Allium paniculatum panicled onion plant herbaceous limited n/a (already in CA) CDFA
Allaria petiolata garlic mustard plant herbaceous not present high OR Weed List
Alhagi maurorum camelthorn plant woody limited n/a (already in CA) NV Weed List
Alfamovirus pyv Potato Yellowing Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Aleyrodes proletella cabbage whitefly arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Aleurotubus jelinekii viburnum whitefly arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Aleuroclava aucubae aucuba whitefly arthropod scale, aphid widespread n/a (already in CA) CDFA (reg. B)
Aleurocanthus woglumi citrus blackfly arthropod scale, aphid not present high CDFA (reg. A)
Aleurocanthus spiniferus orange spiny whitefly arthropod scale, aphid not present high CDFA (reg. A)
Alectra spp. alectra plant herbaceous not present moderate USDA Plant/Pest
Alectoris chukar Chukar partridge vertebrate bird VALUE REQUIRED n/a (already in CA) FL FWCC NNS List
Alectoris barbara Barbary partridge vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Albizia lophantha plume acacia plant woody limited n/a (already in CA) Cal-IPC list
Alabama argillacea cotton leafworm arthropod butterfly, moth not present high CDFA (reg. A)
Aix galericulata Mandarin duck vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Ailanthus altissima tree-of-heaven plant woody widespread n/a (already in CA) Cal-IPC list
Agrostis stolonifera creeping bentgrass plant grass limited n/a (already in CA) Cal-IPC list
Agrostis avenacea Pacific bentgrass plant grass limited n/a (already in CA) Cal-IPC list
Agrilus ruficollis rednecked cane borer arthropod beetle not present high CDFA (reg. A)
Agrilus planipennis emerald ashborer     arthropod beetle not present high CDFA (reg. A)
Agrilus coxalis golden spotted oak borer arthropod beetle limited n/a (already in CA) pest of concern
Agkistrodon spp. Copperhead snake vertebrate reptile not present low DFG Code 2118
Ageratina adenophora croftonweed plant herbaceous limited n/a (already in CA) Cal-IPC list
Agapornis spp. Lovebird vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Agama agama Red-headed agama vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Aethina tumida small hive beetle arthropod beetle limited n/a (already in CA) CDFA (reg. B)
Aeschynomene rudis rough jointvetch plant woody limited n/a (already in CA) CDFA
Aerodramus fuciphagus Edible-nest swiftlet vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Aerodramus bartschi Mariana swiftlet vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Aeginetia spp. aeginetia plant herbaceous not present moderate USDA Plant/Pest
Aegilops triuncialis barb goatgrass plant grass widespread n/a (already in CA) CDFA
Aegilops ovata ovate goatgrass plant grass limited n/a (already in CA) CDFA
Aegilops cylindrica jointed goatgrass plant grass widespread n/a (already in CA) WA Weed List
Aecidium mori Mulberry Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Aecidium hydrangeae-paniculatae alt: Puccinia glyceriae/ rust on Hydrangea spp. and Glyceria spp. disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Adoxophyes orana summer Fruit Tortrix Moth arthropod butterfly, moth not present high USDA Plant/Pest
Adoretus spp. Adoretus spp. arthropod beetle not present high USDA Plant/Pest
Adoretus sinicus chinese rose beetle arthropod beetle not present high CDFA (reg. A)
Adelphocoris rapidus rapid plant bug arthropod scale, aphid widespread n/a (already in CA) CDFA (reg. A)
Acutaspis tingi ting scale arthropod scale, aphid not present high CDFA (reg. A)
Acutaspis albopicta albopicta scale arthropod scale, aphid not present high CDFA (reg. A)
Acroptilon repens Russian knapweed plant herbaceous widespread n/a (already in CA) MT Weed List
Acrolepiopsis assectella leek moth arthropod butterfly, moth not present high USDA Plant/Pest
Acrolepia assectella leek moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Acrochordus javanicus Javan filesnake vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Acrobasis nuxvorella pecan nut casebearer arthropod butterfly, moth not present high CDFA (reg. A)
Acrobasis juglandis pecan leaf casebearer arthropod butterfly, moth not present moderate CDFA (reg. A)
Acridotheres tristis Common mynah vertebrate bird VALUE REQUIRED VALUE REQUIRED CDFA Vert List
Acridotheres cristatellus Crested mynah vertebrate bird not present low Cal Code 14:671
Acremonium (Cephalosporium) diospyri Persimmon Wilt disease fungus not present moderate ForestPests.org
Aclerda tokionis grass scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Achnatherum brachychaetum punagrass plant grass limited n/a (already in CA) CDFA
Acarapis woodi honey bee tracheal mite arthropod widespread n/a (already in CA) USDA Plant/Pest
Acanthococcus azaleae azalea bark scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Acanalonia conica green coneheaded planthopper arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Acalymma vittatum striped cucumber beetle arthropod beetle not present high CDFA (reg. A)
Acaena pallida pale biddy-biddy plant herbaceous limited n/a (already in CA) CDFA
Acaena novae-zelandiae biddy-biddy plant herbaceous limited n/a (already in CA) CDFA
Acacia paradoxa kangaroothorn plant woody limited n/a (already in CA) CDFA
Acacia melanoxylon black acacia plant woody limited n/a (already in CA) Cal-IPC list
Acacia dealbata silver wattle plant woody limited n/a (already in CA) Cal-IPC list
Abutilon theophrasti velvet leaf plant herbaceous widespread n/a (already in CA) Weeds of CA
Abgrallaspis palmae tropical palm scale arthropod scale, aphid not present high CDFA (reg. A)
Abgrallaspis aguacatae armored scale arthropod scale, aphid not present high CDFA (reg. A)