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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
Mamestra brassicae cabbage moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Malva sylvestris high mallow plant herbaceous widespread n/a (already in CA) Weeds of CA
Malva parviflora cheeseweed mallow plant herbaceous widespread n/a (already in CA) Weeds of CA
Malva niaceensis bull mallow plant herbaceous widespread n/a (already in CA) Weeds of CA
Malva neglecta common mallow plant herbaceous widespread n/a (already in CA) Weeds of CA
Malephora crocea coppery mesembryanthemum plant herbaceous limited n/a (already in CA) Med. plants list
Maladera castanea Asiatic garden beetle arthropod beetle not present high CDFA (reg. A)
Malacosoma americanum eastern tent caterpillar arthropod butterfly, moth not present high CDFA (reg. A)
Magicicada septendecim periodical cicada arthropod scale, aphid not present low CDFA (reg. A)
Macrodactylus subspinosus rose chafer arthropod beetle not present high CDFA (reg. A)
Maconellicoccus hirsutus Pink hibiscus mealybug arthropod scale, aphid limited n/a (already in CA) CDFA (reg. A)
Macaca mulatto Rhesus monkey vertebrate mammal VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Macaca fuscata Japanese macaque vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Macaca fascicularis Crab-eating Monkey vertebrate mammal VALUE REQUIRED VALUE REQUIRED ISSG 100WorstIAS
Mabuya multifasciata Many-lined grass skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Lythrum virgatum purple loosestrife plant herbaceous not present low MT Weed List
Lythrum salicaria purple loosestrife plant herbaceous limited n/a (already in CA) CDFA
Lythrum hyssopifolium hyssop loosestrife plant herbaceous widespread n/a (already in CA) Cal-IPC list
Lysimachia vulgaris garden loosestrife plant herbaceous not present high WA Weed List
Lyngbya spp. Lyngbya spp. plant algae VALUE REQUIRED VALUE REQUIRED Hoffman NOAA
Lymire edwardsii Edwards' wasp moth arthropod butterfly, moth not present low CDFA (reg. A)
Lymantria spp. exotic moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Lymantria dispar Gypsy moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Lydorus pedicellatus Blacktip shipworm invertebrate aquatic mollusk, marine VALUE REQUIRED VALUE REQUIRED IMEAC
Lycium ferocissimum African boxthorn plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Luteovirus sbdv Soybean dwarf virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Luteovirus of unassigned genus African Soybean Dwarf Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Luteovirus isdv Indonesian Soybean Dwarf Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Luteovirus cav Cotton Anthocyanosis Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Luteovirus n/a Citrus vein-enation virus probably Luteovirus disease virus limited VALUE REQUIRED No list
Ludwigia peruviana water primrose plant herbaceous not present moderate CDFA
Ludwigia peploides ssp. montevidensis creeping water-primrose plant herbaceous widespread n/a (already in CA) Cal-IPC list
Ludwigia hexapetala Uruguay water-primrose plant herbaceous widespread n/a (already in CA) Cal-IPC list
Ludwigia grandiflora large flower primrose willow plant herbaceous limited n/a (already in CA) WA Weed List
Lophura leucomelana Kalij pheasant vertebrate bird VALUE REQUIRED VALUE REQUIRED Harmful U.S. NIS
Lopholeucaspis cockerelli Cockerell scale arthropod scale, aphid not present high CDFA (reg. A)
Lophocateres pusillus Siamese grain borer arthropod beetle not present moderate CDFA (reg. A)
Lonchura punctulata Nutneg manikin vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Lonchura malacca Black-headed manikin vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Lonchura malabarica Warbling silverbill vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Lomentaria hakodatensis yendo plant algae VALUE REQUIRED VALUE REQUIRED Hoffman NOAA
Lolium multiflorum Italian ryegrass plant grass widespread n/a (already in CA) Cal-IPC list
Lobularia maritima sweet alyssum plant herbaceous limited n/a (already in CA) Cal-IPC list
Lobesia botrana European Grapevine Moth arthropod butterfly, moth limited n/a (already in CA) USDA Plant/Pest
Llarvirus emov Elm Mottle Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Littorina saxatilis Rough periwinkle invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Listroderes subcinctus Chilean vegetable weevil arthropod beetle not present high USDA Plant/Pest
Liriomyza huidobrensis pea leafminer arthropod fly widespread n/a (already in CA) CDFA (reg. A)
Lipinia noctua Moth skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Liothrips oleae olive thrips arthropod thrips not present moderate CDFA (reg. A)
Linaria vulgaris yellow toadflax plant herbaceous limited n/a (already in CA) Cal-IPC list
Linaria genistifolia ssp. dalmatica Dalmatian toadflax plant herbaceous limited n/a (already in CA) CDFA
Limnoria tripunctata Mediterranean gribble invertebrate crustaceans and tunicates limited n/a (already in CA) IMEAC
Limnoria quadripuncatata Mediterranean gribble invertebrate crustaceans and tunicates limited n/a (already in CA) IMEAC
Limnophila sessiliflora blume (ambulia) plant herbaceous not present moderate CDFA
Limnophila indica ambulia plant herbaceous not present moderate CDFA
Limnoperna fortunei Golden mussel invertebrate aquatic mollusk, freshwater not present low ANSIS
Limnobium laevigatum spongeplant plant herbaceous limited n/a (already in CA) CDFA
Ligustrum Mosaic Agents Ligustrum Mosaic Agents disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Leucoptera malifoliella pear leaf blister moth arthropod butterfly, moth not present moderate USDA Plant/Pest
Leucoma salicis satin moth arthropod butterfly, moth limited n/a (already in CA) CDFA (reg. B)
Leucinodes orbonalis eggplant fruit borer arthropod butterfly, moth not present moderate CDFA (reg. A)
Leucanthemum vulgare ox-eye daisy plant herbaceous widespread n/a (already in CA) Cal-IPC list
Lespedeza cuneata sericea lespedeza plant herbaceous not present moderate CO Weed List
Lepyrodiclis holosteoides false jagged-chickweed plant herbaceous not present low WA Weed List
Lepus townsendii White-tailed jackrabbit vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Lepus europaeus European hare vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Leptographium truncatum Root Disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Leptographium procerum Leptographium root disease disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Leptoglossus chilensis brown Chilean leaf-footed bug arthropod scale, aphid not present moderate USDA Plant/Pest
Leptocybe invasa Blue gum chalcid arthropod bee, wasp not present high CDFA (reg. A)
Leptocorisa acuta rice seed bug arthropod scale, aphid not present moderate USDA Plant/Pest
Leptochloa chinensis Asian sprangletop plant grass not present moderate USDA Plant/Pest
Leptinotarsa decemlineata Colorado potato beetle arthropod beetle not present high CDFA (reg. A)
Lepstosteus lucius Longnose Gar vertebrate fish not present high Cal Code 14:671
Lepisosteus osseus Longnose Gar vertebrate fish not present moderate Cal Code 14:671
Lepidosaphes maskelli Maskell scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Lepidosaphes beckii purple scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Lepidodactylus lugubris Mourning gecko vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Lepidium latifolium perennial pepperweed plant herbaceous widespread n/a (already in CA) CDFA
Leiothrix lutea Red-billed leiothrix vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Leiolepis belliana Butterfly lizard vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Leiocephalus schreibersii Red-sided curlytail lizard vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Leiocephalus carinatus Northern curlytail lizard vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Laspeyresia spp. Laspeyresia spp. arthropod butterfly, moth not present high USDA Plant/Pest
Lampropholis delicate Plague skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Lampides boeticus bean butterfly arthropod butterfly, moth not present moderate CDFA (reg. A)
Lamium amplexicaule henbit deadnettle plant herbaceous widespread n/a (already in CA) Weeds of CA
Lagopus leucurus White-tailed ptarmigan vertebrate bird VALUE REQUIRED VALUE REQUIRED No list
Lagarosiphon major oxygenweed plant herbaceous not present moderate CDFA
Lactuca serriola prickly lettuce plant herbaceous widespread n/a (already in CA) Weeds of CA
Lachnellula willkommii Eurpoean larch canker disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Lacerta bilineata Western green lacerta vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Kochia scoparia kochia plant herbaceous widespread n/a (already in CA) Cal-IPC list
Kilifia acuminata acuminate scale arthropod scale, aphid not present high CDFA (reg. A)
Kickxia elatine sharpleaf cancerwort plant herbaceous widespread n/a (already in CA) Weeds of CA
Junghuhnia vincta Corm dry rot disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Jasmine Variegation Agents Jasmine Variegation Agents disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Ischnoderma rosulata Wood decay disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Ischnaspis longirostris black thread scale arthropod scale, aphid not present high CDFA (reg. A)