Home

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
Mephitis mephitis Skunk vertebrate mammal widespread n/a (already in CA) Cal Code 14:671
Meriones unguiculatus Mongolian gerbil vertebrate mammal not present moderate CDFA Vert List
Mesembryanthemum crystallinum crystalline iceplant plant herbaceous widespread n/a (already in CA) Cal-IPC list
Mesolecanium nigrofasciatum terrapin scale arthropod scale, aphid not present moderate CDFA (reg. A)
Metamasius spp. bromeliad weevils arthropod beetle not present moderate USDA Plant/Pest
Microcyclus ulei South American Leaf Blight disease fungus not present low APSNet
Mikania cordata mile-a-minute plant herbaceous not present low USDA Plant/Pest
Mikania micrantha bittervine plant herbaceous not present low USDA Plant/Pest
Milium vernale milium plant grass not present low ID Weed List
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
Mimosa pellita lollipop mimosa plant woody not present low OR Weed List
Mimosa pigra catclaw mimosa plant woody not present low USDA Plant/Pest
Mirabilis nyctaginea wild four o-clock plant herbaceous limited n/a (already in CA) WA Weed List
Mitraspora cyprini Fujita Parasitic protozoan of fish invertebrate nematode VALUE REQUIRED VALUE REQUIRED No list
Molossus molossus Pallas’s mastiff bat vertebrate mammal VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Molothrus ater Brown-headed cowbird vertebrate bird widespread n/a (already in CA) Cal Code 14:671
Monilinia fructigena Brown Rot of Fruit disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Moniliophthora roreri Watery Pod Rot disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Monochoria hastata arrowleaf falsepickerelweed plant herbaceous not present low USDA Plant/Pest
Monochoria vaginalis heartshape false pickerelweed plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Monogeminivirus msv Maize Streak Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Mononychellus tanajoa green spider mite arthropod mite not present moderate USDA Plant/Pest
Monopterus albus Asian swamp eel vertebrate fish not present low Cal Code 14:671
Morbillivirus ppr Peste des Petits Ruminants; disease virus VALUE REQUIRED VALUE REQUIRED Chavarria NRDC
Morbillivirus RBOK Rinderpest virus disease virus not present VALUE REQUIRED Chavarria NRDC
Morganella longispina plumose scale arthropod scale, aphid not present high CDFA (reg. A)
Morone chrysops White bass vertebrate fish limited n/a (already in CA) Cal Code 14:671
Mountain Ash Ringspot Mosaic Agent Mountain Ash Ringspot Mosaic Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Mountain Ash Variegation Agent Mountain Ash Variegation Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Muhlenbergia schreberi nimblewill plant grass limited n/a (already in CA) CDFA
Mulberry Mosaic Agent Mulberry Mosaic Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Murdannia keisak marsh dew flower plant herbaceous not present moderate WA Weed List
Mus musculus House mouse vertebrate mammal widespread n/a (already in CA) Cal Code 14:671
Musculista senhousia Green bagmussel invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Mustela erminea Stoat vertebrate mammal VALUE REQUIRED VALUE REQUIRED Lacey Act
Mustela nivalis Least weasel vertebrate mammal VALUE REQUIRED VALUE REQUIRED Lacey Act
Mustela putorius European polecat or ferret vertebrate mammal limited n/a (already in CA) Cal Code 14:671
Mustela vision American mink vertebrate mammal VALUE REQUIRED VALUE REQUIRED Lacey Act
Mya arenaria Soft-shell clam invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Mycetaspis spaerioides armored scale arthropod scale, aphid not present high CDFA (reg. A)
Mycobacterium bovis Bovine tuberculosis disease bacterium limited n/a (already in CA) Iowa State Univ
Mycoplasma capricolum capripneumoniae Contagious Bovine Caprine Pleuropneumonia disease bacterium not present low Merck Vet Manual
Mycoplasma mycoides mycoides Bovine pleuropneumonia disease bacterium not present low Merck Vet Manual
Mycosphaerella dearnesii Brown Spot Needle Blight disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Mycosphaerella pini Red Band Needle Blight disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Myiopsitta monachus Monk parakeet vertebrate bird limited n/a (already in CA) Cal Code 14:671
Myllocerus undecimpustulatus undatus Sri Lanka weevil arthropod beetle not present moderate CDFA (reg. A)
Mylopharyngodon piceus Black Carp vertebrate fish not present high Cal Code 14:671
Myndus crudus American palm cixiid arthropod scale, aphid not present high CDFA (reg. A)
Myocastor coypus Nutria vertebrate mammal limited n/a (already in CA) Cal Code 14:671
Myoporum laetum myoporum plant woody limited n/a (already in CA) Cal-IPC list
Myosotella myosotis Mouse-ear marshsnail invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Myosotis latifolia common forget-me-not plant herbaceous limited n/a (already in CA) Cal-IPC list
Myosoton aquaticum giant chickweed plant herbaceous not present moderate CDFA
Myriophyllum aquaticum parrotfeather plant herbaceous limited n/a (already in CA) Cal-IPC list
Myriophyllum spicatum Eurasian watermilfoil plant herbaceous widespread n/a (already in CA) Cal-IPC list
mytilus galloprovincialis Mediterranean blue mussel invertebrate aquatic mollusk, marine widespread n/a (already in CA) IMEAC
Myxobolus (Lentospora) cerebralis Protozoic Whirling disease disease parasitic animal limited n/a (already in CA) National IS Info
n/a Citrus chlorotic dwarf n/a Citrus chlorotic dwarf disease virus not present VALUE REQUIRED APHIS OPIS
n/a Citrus leaf blotch virus n/a Citrus leaf blotch virus disease virus not present VALUE REQUIRED No list
n/a Citrus psorosis virus n/a Citrus psorosis virus disease virus limited VALUE REQUIRED No list
n/a Citrus vein-enation virus probably Luteovirus n/a Citrus vein-enation virus probably Luteovirus disease virus not present VALUE REQUIRED No list
n/a Citrus viroids n/a Citrus viroids disease virus not present VALUE REQUIRED No list
n/a Concave gum/blind pocket n/a Concave gum/blind pocket disease virus limited VALUE REQUIRED No list
n/a Indian citrus ringspot virus n/a Indian citrus ringspot virus disease virus not present VALUE REQUIRED CACASA
Najas minor slender-leaved naiad plant herbaceous not present moderate WA Weed List
Nandayus nenday Nanday conure vertebrate bird VALUE REQUIRED n/a (already in CA) FL FWCC NNS List
Nardus stricta matgrass plant grass not present moderate ID Weed List
Nassella trichotoma serrated tussock plant grass not present low USDA Plant/Pest
Nasua narica White-nosed coati vertebrate mammal VALUE REQUIRED VALUE REQUIRED CDFA Vert List
Nasua nasua Coatimundi vertebrate mammal VALUE REQUIRED VALUE REQUIRED CDFA Vert List
Naupactus leucoloma whitefringed beetle arthropod beetle limited n/a (already in CA) CDFA (reg. B)
Naupactus spp. whitefringed beetles arthropod beetle limited n/a (already in CA) CDFA (reg. B)
Naupactus xanthographus South American fruit tree weevil arthropod beetle not present moderate USDA Plant/Pest
Neogobius melanostomus Round goby vertebrate fish not present moderate NISIC
Neomaskellia bergii sugarcane whitefly arthropod scale, aphid not present high USDA Plant/Pest
Nepovirus ailv Artichoke Italian Latent Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus armv Arabis mosaic virus and its strains disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus avb Arracacha Virus B disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus brv Black Currant Reversion Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus cnv Cocoa Necrosis Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus csalv Cassava Latent Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus gblv Grapevine Bulgarian Latent Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus gcmv Grapevine Chrome Mosaic Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus gtrsv Grapevine Tunisian Ringspot Virus disease virus not present low APHIS OPIS
Nepovirus lalv Lucerne Vein Yellowing Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus lasv Lucerne Australian Symptomless Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus pvu Potato Virus U disease virus VALUE REQUIRED VALUE REQUIRED No list
Nepovirus rprsv Raspberry ringspot virus and its strains disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus slrsv Strawberry Latent Ringspot Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus tbrv Tomato Black Ring Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nepovirus trsv Tobacco Ringspot Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Nerium oleander oleander plant woody limited n/a (already in CA) Med. plants list
Nerodia fasciata Southern Watersnake vertebrate reptile limited high Cal Code 14:671
Nerodia rhombifer Diamondback water snake vertebrate reptile not present high Cal Code 14:671
Nicotiana glauca tree tobacco plant woody widespread n/a (already in CA) Cal-IPC list
Nilotaspis halli Hall scale arthropod scale, aphid not present high CDFA (reg. A)
Nothoscordum inodorum false garlic plant herbaceous limited n/a (already in CA) CDFA
Novirhadovirus Viral Hemorrhagic Septicemia Virus (VHSV) Viral Hemorragic septicemia disease virus not present moderate National IS Info