Invasive Species List

Species List Information

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.

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 Type Subtype Extent Risk of Introduction Link
Megalopyge opercularis puss caterpillar arthropod butterfly, moth not present low
Melagris gallopavo Wild turkey vertebrate bird widespread n/a (already in CA) View Scorecard
Melaleuca quinquenervia broadleaf paper bard tree plant woody not present low
Melampsora pinitorqua Twist Rust disease fungus
Melanaspis obscura obscure scale arthropod scale, aphid limited n/a (already in CA)
Melanomma glumarum Glume Blotch disease fungus
Melastoma malabathricum Malabar melastome plant woody not present low
Melinis repens Natal grass plant grass limited n/a (already in CA) View Scorecard
Melittia calabaza southwestern squash vine borer arthropod butterfly, moth not present moderate
Melittia cucurbitae squash vine borer arthropod butterfly, moth not present moderate
Melopsittacus undulatus Budgerigar vertebrate bird
Mentha pulegium pennyroyal plant herbaceous widespread n/a (already in CA) View Scorecard
Mephitis mephitis Skunk vertebrate mammal widespread n/a (already in CA)
Meriones unguiculatus Mongolian gerbil vertebrate mammal not present moderate
Mesembryanthemum crystallinum crystalline iceplant plant herbaceous widespread n/a (already in CA) View Scorecard
Mesolecanium nigrofasciatum terrapin scale arthropod scale, aphid not present moderate
Metamasius spp. bromeliad weevils arthropod beetle not present moderate
Microcyclus ulei South American Leaf Blight disease fungus not present low
Mikania cordata mile-a-minute plant herbaceous not present low
Mikania micrantha bittervine plant herbaceous not present low
Milium vernale milium plant grass not present low
Mimosa diplotricha giant sensitive plant plant woody not present low
Mimosa invisa giant sensitive plant plant woody not present low
Mimosa pellita lollipop mimosa plant woody not present low
Mimosa pigra catclaw mimosa plant woody not present low
Mirabilis nyctaginea wild four o-clock plant herbaceous limited n/a (already in CA)
Mitraspora cyprini Fujita Parasitic protozoan of fish invertebrate nematode
Molossus molossus Pallas's mastiff bat vertebrate mammal
Molothrus ater Brown-headed cowbird vertebrate bird widespread n/a (already in CA) View Scorecard
Monilinia fructigena Brown Rot of Fruit disease fungus
Moniliophthora roreri Watery Pod Rot disease fungus
Monochoria hastata arrowleaf falsepickerelweed plant herbaceous not present low
Monochoria vaginalis heartshape false pickerelweed plant herbaceous limited n/a (already in CA) View Scorecard
Monogeminivirus msv Maize Streak Virus disease virus
Mononychellus tanajoa green spider mite arthropod mite not present moderate
Monopterus albus Asian swamp eel vertebrate fish not present low
Morbillivirus ppr Peste des Petits Ruminants; disease virus
Morbillivirus RBOK Rinderpest virus disease virus not present
Morganella longispina plumose scale arthropod scale, aphid not present high
Morone chrysops White bass vertebrate fish limited n/a (already in CA) View Scorecard
Mountain Ash Ringspot Mosaic Agent Mountain Ash Ringspot Mosaic Agent disease virus
Mountain Ash Variegation Agent Mountain Ash Variegation Agent disease virus
Muhlenbergia schreberi nimblewill plant grass limited n/a (already in CA)
Mulberry Mosaic Agent Mulberry Mosaic Agent disease virus
Murdannia keisak marsh dew flower plant herbaceous not present moderate
Mus musculus House mouse vertebrate mammal widespread n/a (already in CA) View Scorecard
Mustela erminea Stoat vertebrate mammal
Mustela nivalis Least weasel vertebrate mammal
Mustela putorius European polecat or ferret vertebrate mammal limited n/a (already in CA) View Scorecard
Mustela vision American mink vertebrate mammal
Mya arenaria Soft-shell clam invertebrate aquatic mollusk, marine limited n/a (already in CA)
Mycetaspis spaerioides armored scale arthropod scale, aphid not present high
Mycobacterium bovis Bovine tuberculosis disease bacterium limited n/a (already in CA) View Scorecard
Mycoplasma capricolum capripneumoniae Contagious Bovine Caprine Pleuropneumonia disease bacterium not present low
Mycoplasma mycoides mycoides Bovine pleuropneumonia disease bacterium not present low
Mycosphaerella dearnesii Brown Spot Needle Blight disease fungus
Mycosphaerella pini Red Band Needle Blight disease fungus
Myiopsitta monachus Monk parakeet vertebrate bird limited n/a (already in CA) View Scorecard
Myllocerus undecimpustulatus undatus Sri Lanka weevil arthropod beetle not present moderate
Mylopharyngodon piceus Black Carp vertebrate fish not present high View Scorecard
Myndus crudus American palm cixiid arthropod scale, aphid not present high
Myocastor coypus Nutria vertebrate mammal limited n/a (already in CA) View Scorecard
Myoporum laetum myoporum plant woody limited n/a (already in CA)
Myosotella myosotis Mouse-ear marshsnail invertebrate aquatic mollusk, marine limited n/a (already in CA)
Myosotis latifolia common forget-me-not plant herbaceous limited n/a (already in CA)
Myosoton aquaticum giant chickweed plant herbaceous not present moderate
Myriophyllum aquaticum parrotfeather plant herbaceous limited n/a (already in CA) View Scorecard
Myriophyllum spicatum Eurasian watermilfoil plant herbaceous widespread n/a (already in CA) View Scorecard
Mytilus galloprovincialis Mediterranean blue mussel invertebrate aquatic mollusk, marine widespread n/a (already in CA)
Myxobolus (Lentospora) cerebralis Protozoic Whirling disease disease parasitic animal limited n/a (already in CA) View Scorecard
n/a Citrus chlorotic dwarf n/a Citrus chlorotic dwarf disease virus not present
n/a Citrus leaf blotch virus n/a Citrus leaf blotch virus disease virus not present
n/a Citrus psorosis virus n/a Citrus psorosis virus disease virus limited
n/a Citrus vein-enation virus probably Luteovirus n/a Citrus vein-enation virus probably Luteovirus disease virus not present
n/a Citrus viroids n/a Citrus viroids disease virus not present
n/a Concave gum/blind pocket n/a Concave gum/blind pocket disease virus limited
n/a Indian citrus ringspot virus n/a Indian citrus ringspot virus disease virus not present
Najas minor slender-leaved naiad plant herbaceous not present moderate
Nandayus nenday Nanday conure vertebrate bird n/a (already in CA)
Nardus stricta matgrass plant grass not present moderate
Nassella trichotoma serrated tussock plant grass not present low
Nasua narica White-nosed coati vertebrate mammal
Nasua nasua Coatimundi vertebrate mammal
Naupactus leucoloma whitefringed beetle arthropod beetle limited n/a (already in CA)
Naupactus spp. whitefringed beetles arthropod beetle limited n/a (already in CA)
Naupactus xanthographus South American fruit tree weevil arthropod beetle not present moderate
Neogobius melanostomus Round goby vertebrate fish not present moderate
Neomaskellia bergii sugarcane whitefly arthropod scale, aphid not present high
Nepovirus ailv Artichoke Italian Latent Virus disease virus
Nepovirus armv Arabis mosaic virus and its strains disease virus
Nepovirus avb Arracacha Virus B disease virus
Nepovirus brv Black Currant Reversion Virus disease virus
Nepovirus cnv Cocoa Necrosis Virus disease virus
Nepovirus csalv Cassava Latent Virus disease virus
Nepovirus gblv Grapevine Bulgarian Latent Virus disease virus
Nepovirus gcmv Grapevine Chrome Mosaic Virus disease virus
Nepovirus gtrsv Grapevine Tunisian Ringspot Virus disease virus not present low
Nepovirus lalv Lucerne Vein Yellowing Virus disease virus
Nepovirus lasv Lucerne Australian Symptomless Virus disease virus
Nepovirus pvu Potato Virus U disease virus