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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
Lepidosaphes beckii purple scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Lepidosaphes maskelli Maskell scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Lepisosteus osseus Longnose Gar vertebrate fish not present moderate Cal Code 14:671
Lepstosteus lucius Longnose Gar vertebrate fish not present high Cal Code 14:671
Leptinotarsa decemlineata Colorado potato beetle arthropod beetle not present high CDFA (reg. A)
Leptochloa chinensis Asian sprangletop plant grass not present moderate USDA Plant/Pest
Leptocorisa acuta rice seed bug arthropod scale, aphid not present moderate USDA Plant/Pest
Leptocybe invasa Blue gum chalcid arthropod bee, wasp not present high CDFA (reg. A)
Leptoglossus chilensis brown Chilean leaf-footed bug arthropod scale, aphid not present moderate USDA Plant/Pest
Leptographium procerum Leptographium root disease disease fungus VALUE REQUIRED VALUE REQUIRED USDA Plant/Pest
Leptographium truncatum Root Disease disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Lepus europaeus European hare vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Lepus townsendii White-tailed jackrabbit vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Lepyrodiclis holosteoides false jagged-chickweed plant herbaceous not present low WA Weed List
Lespedeza cuneata sericea lespedeza plant herbaceous not present moderate CO Weed List
Leucanthemum vulgare ox-eye daisy plant herbaceous widespread n/a (already in CA) Cal-IPC list
Leucinodes orbonalis eggplant fruit borer arthropod butterfly, moth not present moderate CDFA (reg. A)
Leucoma salicis satin moth arthropod butterfly, moth limited n/a (already in CA) CDFA (reg. B)
Leucoptera malifoliella pear leaf blister moth arthropod butterfly, moth not present moderate USDA Plant/Pest
Ligustrum Mosaic Agents Ligustrum Mosaic Agents disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Limnobium laevigatum spongeplant plant herbaceous limited n/a (already in CA) CDFA
Limnoperna fortunei Golden mussel invertebrate aquatic mollusk, freshwater not present low ANSIS
Limnophila indica ambulia plant herbaceous not present moderate CDFA
Limnophila sessiliflora blume (ambulia) plant herbaceous not present moderate CDFA
Limnoria quadripuncatata Mediterranean gribble invertebrate crustaceans and tunicates limited n/a (already in CA) IMEAC
Limnoria tripunctata Mediterranean gribble invertebrate crustaceans and tunicates limited n/a (already in CA) IMEAC
Linaria genistifolia ssp. dalmatica Dalmatian toadflax plant herbaceous limited n/a (already in CA) CDFA
Linaria vulgaris yellow toadflax plant herbaceous limited n/a (already in CA) Cal-IPC list
Liothrips oleae olive thrips arthropod thrips not present moderate CDFA (reg. A)
Lipinia noctua Moth skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED Witmer et al
Liriomyza huidobrensis pea leafminer arthropod fly widespread n/a (already in CA) CDFA (reg. A)
Listroderes subcinctus Chilean vegetable weevil arthropod beetle not present high USDA Plant/Pest
Littorina saxatilis Rough periwinkle invertebrate aquatic mollusk, marine limited n/a (already in CA) Exoticsguide
Llarvirus emov Elm Mottle Virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Lobesia botrana European Grapevine Moth arthropod butterfly, moth limited n/a (already in CA) USDA Plant/Pest
Lobularia maritima sweet alyssum plant herbaceous limited n/a (already in CA) Cal-IPC list
Lolium multiflorum Italian ryegrass plant grass widespread n/a (already in CA) Cal-IPC list
Lomentaria hakodatensis yendo plant algae VALUE REQUIRED VALUE REQUIRED Hoffman NOAA
Lonchura malabarica Warbling silverbill vertebrate bird VALUE REQUIRED VALUE REQUIRED Witmer et al
Lonchura malacca Black-headed manikin vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Lonchura punctulata Nutneg manikin vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Lophocateres pusillus Siamese grain borer arthropod beetle not present moderate CDFA (reg. A)
Lopholeucaspis cockerelli Cockerell scale arthropod scale, aphid not present high CDFA (reg. A)
Lophura leucomelana Kalij pheasant vertebrate bird VALUE REQUIRED VALUE REQUIRED Harmful U.S. NIS
Ludwigia grandiflora large flower primrose willow plant herbaceous limited n/a (already in CA) WA Weed List
Ludwigia hexapetala Uruguay water-primrose plant herbaceous widespread n/a (already in CA) Cal-IPC list
Ludwigia peploides ssp. montevidensis creeping water-primrose plant herbaceous widespread n/a (already in CA) Cal-IPC list
Ludwigia peruviana water primrose plant herbaceous not present moderate CDFA
Luteovirus n/a Citrus vein-enation virus probably Luteovirus disease virus limited VALUE REQUIRED No list
Luteovirus cav Cotton Anthocyanosis Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Luteovirus isdv Indonesian 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 sbdv Soybean dwarf virus disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Lycium ferocissimum African boxthorn plant herbaceous limited n/a (already in CA) USDA Plant/Pest
Lydorus pedicellatus Blacktip shipworm invertebrate aquatic mollusk, marine VALUE REQUIRED VALUE REQUIRED IMEAC
Lymantria dispar Gypsy moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Lymantria spp. exotic moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Lymire edwardsii Edwards' wasp moth arthropod butterfly, moth not present low CDFA (reg. A)
Lyngbya spp. Lyngbya spp. plant algae VALUE REQUIRED VALUE REQUIRED Hoffman NOAA
Lysimachia vulgaris garden loosestrife plant herbaceous not present high WA Weed List
Lythrum hyssopifolium hyssop loosestrife plant herbaceous widespread n/a (already in CA) Cal-IPC list
Lythrum salicaria purple loosestrife plant herbaceous limited n/a (already in CA) CDFA
Lythrum virgatum purple loosestrife plant herbaceous not present low MT Weed List
Mabuya multifasciata Many-lined grass skink vertebrate reptile VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Macaca fascicularis Crab-eating Monkey vertebrate mammal VALUE REQUIRED VALUE REQUIRED ISSG 100WorstIAS
Macaca fuscata Japanese macaque vertebrate mammal VALUE REQUIRED VALUE REQUIRED Witmer et al
Macaca mulatto Rhesus monkey vertebrate mammal VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Maconellicoccus hirsutus Pink hibiscus mealybug arthropod scale, aphid limited n/a (already in CA) CDFA (reg. A)
Macrodactylus subspinosus rose chafer arthropod beetle not present high CDFA (reg. A)
Magicicada septendecim periodical cicada arthropod scale, aphid not present low CDFA (reg. A)
Malacosoma americanum eastern tent caterpillar arthropod butterfly, moth not present high CDFA (reg. A)
Maladera castanea Asiatic garden beetle arthropod beetle not present high CDFA (reg. A)
Malephora crocea coppery mesembryanthemum plant herbaceous limited n/a (already in CA) Med. plants list
Malva neglecta common 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 parviflora cheeseweed mallow plant herbaceous widespread n/a (already in CA) Weeds of CA
Malva sylvestris high mallow plant herbaceous widespread n/a (already in CA) Weeds of CA
Mamestra brassicae cabbage moth arthropod butterfly, moth not present moderate CDFA (reg. A)
Mandarivirus icrsv Indian citrus ringspot virus disease virus not present low NAPPO
Maple Mosaic Agent Maple Mosaic Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Maple Variegation Agent Maple Variegation Agent disease virus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Marrubium vulgare white horehound plant herbaceous widespread n/a (already in CA) Cal-IPC list
Maruca testulalis bean pod borer arthropod butterfly, moth not present high CDFA (reg. A)
Maruca vitrata bean pod borer arthropod butterfly, moth not present high USDA Plant/Pest
Massileurodes chittendeni rhodendron whitefly arthropod scale, aphid not present high CDFA (reg. A)
Mastomys spp. Multimammate rat or mouse vertebrate mammal not present low Lacey Act
Maytenus boaria mayten plant woody limited n/a (already in CA) Med. plants list
Medicago polymorpha California burclover plant herbaceous widespread n/a (already in CA) Cal-IPC list
Megalometis chilensis Megalometis chilensis arthropod beetle not present moderate USDA Plant/Pest
Megalopyge opercularis puss caterpillar arthropod butterfly, moth not present low CDFA (reg. A)
Melagris gallopavo Common turkey vertebrate bird widespread n/a (already in CA) Cal Code 14:671
Melaleuca quinquenervia broadleaf paper bard tree plant woody not present low USDA Plant/Pest
Melampsora pinitorqua Twist Rust disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Melanaspis obscura obscure scale arthropod scale, aphid limited n/a (already in CA) CDFA (reg. B)
Melanomma glumarum Glume Blotch disease fungus VALUE REQUIRED VALUE REQUIRED APHIS OPIS
Melastoma malabathricum Malabar melastome plant woody not present low APHIS
Melittia calabaza southwestern squash vine borer arthropod butterfly, moth not present moderate CDFA (reg. A)
Melittia cucurbitae squash vine borer arthropod butterfly, moth not present moderate CDFA (reg. A)
Melopsittacus undulatus Budgerigar vertebrate bird VALUE REQUIRED VALUE REQUIRED FL FWCC NNS List
Mentha pulegium pennyroyal plant herbaceous widespread n/a (already in CA) Cal-IPC list