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
Nepovirus rprsv Raspberry ringspot virus and its strains disease virus
Nepovirus slrsv Strawberry Latent Ringspot Virus disease virus
Nepovirus tbrv Tomato Black Ring Virus disease virus
Nepovirus trsv Tobacco Ringspot Virus disease virus
Nerium oleander oleander plant woody limited n/a (already in CA)
Nerodia fasciata Southern Watersnake vertebrate reptile limited high View Scorecard
Nerodia rhombifer Diamondback water snake vertebrate reptile not present high View Scorecard
Nicotiana glauca tree tobacco plant woody widespread n/a (already in CA)
Nilotaspis halli Hall scale arthropod scale, aphid not present high View Scorecard
Nothoscordum inodorum false garlic plant herbaceous limited n/a (already in CA)
Novirhadovirus Viral Hemorrhagic Septicemia Virus (VHSV) Viral Hemorragic septicemia disease virus not present moderate View Scorecard
Nucleorhabdovirus ccmv Cereal Chlorotic Mosaic Virus disease virus
Nucleorhabdovirus ccsv Cynodon Chlorotic Streak Virus disease virus
Nucleorhabdovirus immv Iranian Maize Mosaic Virus disease virus
Nucleorhabdovirus lev Lucerne enation virus disease virus
Numida meleagris Helmeted guineafowl vertebrate bird
Nyctereutes procyonoides Racoon dog vertebrate mammal
Nylanderia fulva Tawny crazy ant arthropod bee, wasp not present high View Scorecard
Nymphaea mexicana banana waterlily plant herbaceous limited n/a (already in CA)
Nymphaea odorata fragrant waterlily plant herbaceous limited n/a (already in CA)
Nymphicus hollandicus Cockatiel vertebrate bird
Nymphoides peltata yellow floating heart plant herbaceous limited n/a (already in CA)
Oat Red Streak Mosaic Virus Oat Red Streak Mosaic Virus disease virus
Odocoileus hemionus Black-tailed deer vertebrate mammal
Oebalus pugnax rice stink bug arthropod scale, aphid not present high
Okra Mosaic Agents Okra Mosaic Agents disease virus
Okra Yellow Leaf Curl Agent Okra Yellow Leaf Curl Agent disease virus
Olea europaea olive plant woody limited n/a (already in CA) View Scorecard
Omphisa anastomosalis sweetpotato vine borer arthropod beetle not present moderate
Oncobasidium theobromae Vascular Streak Die-back of cocoa disease fungus
Oncosiphon pilulifer Stinknet plant herbaceous limited n/a (already in CA) View Scorecard
Ononis alopecuroides foxtail restharrow plant herbaceous limited n/a (already in CA)
Onopordum acanthium Scotch thistle plant herbaceous limited n/a (already in CA) View Scorecard
Onopordum illyricum Illyrian thistle plant herbaceous limited n/a (already in CA)
Onopordum tauricum Taurian thistle plant herbaceous limited n/a (already in CA)
Oodinium pilularis Velvet disease invertebrate nematode
Oospora oryzetorum Blight disease fungus
Ophiomyia phaseoli bean fly arthropod fly not present low
Ophiostoma (Ceratocystis) ulmi Dutch elm disease disease fungus
Ophiostoma huntii Blue Stain disease fungus
Ophiostoma ips Blue Stain Fungus disease fungus
Ophiostoma piceae Blue stain disease fungus
Ophiostoma piceaperdum Laural Wilt disease fungus
Ophiostoma piliferum Blue stain disease fungus
Ophiostoma pluriannulatum Wood stain disease fungus
Ophiostoma valdivianum Blue Stain of Beech disease fungus not present moderate
Opogona sacchari banana moth arthropod butterfly, moth not present high
Opuntia aurantiaca jointed prickly pear plant herbaceous not present low
Orbivirus ahsv African Horse Sickness Virus disease virus
Orbivirus btv Bluetongue disease virus limited n/a (already in CA) View Scorecard
Orconectes rusticus Rusty crayfish invertebrate crustaceans and tunicates not present high View Scorecard
Orgyia leucostigma whitemarked tussock moth arthropod butterfly, moth not present moderate
Orobanche cooperi Cooper's broomrape plant herbaceous limited n/a (already in CA) View Scorecard
Orobanche minor small broomrape plant herbaceous not present high
Orobanche ramosa branched broomrape plant herbaceous limited n/a (already in CA) View Scorecard
Orobanche spp. broomrape plant herbaceous limited n/a (already in CA) View Scorecard
Ortalis vetula Plain chachalaca vertebrate bird
Orthobunyavirus akav Akabane Virus disease virus
Orthopoxvirus cmlv Camel Pox Virus disease virus
Orthotomicus erosus Mediterranean pine engraver arthropod beetle not present high
Oryctes rhinoceros Coconut rhinocerus beetle arthropod beetle not present moderate View Scorecard
Oryctolagus cuniculus European rabbit vertebrate mammal n/a (already in CA)
Oryx gazelle Gemsbok vertebrate mammal
Oryza longistaminata red rice plant grass not present moderate
Oryza punctata red rice plant grass not present moderate
Oryza rufipogon red rice plant grass limited n/a (already in CA) View Scorecard
Oryzavirus ersv Echinochloa Ragged Stunt Virus disease virus
Osteopilus septentrionalis Cuban treefrog vertebrate amphibian not present low
Osteospermum calendulaceum Stinking Roger plant herbaceous limited n/a (already in CA) View Scorecard
Ostrinia nubilalis European corn borer arthropod butterfly, moth not present high View Scorecard
Ottelia alismoides ducklettuce plant herbaceous not present high
Oulema melanopus cereal leaf beetle arthropod beetle not present high View Scorecard
Ovibos moshatus Musk-ox vertebrate mammal
Ovis ammon Mouflon sheep vertebrate mammal
Ovis aries Feral sheep vertebrate mammal
Oxalis corniculata creeping woodsorrel plant herbaceous widespread n/a (already in CA)
Oxalis pes-caprae Bermuda buttercup plant herbaceous widespread n/a (already in CA)
Oxycarenus hyalinipennis Cotton seed bug arthropod scale, aphid limited n/a (already in CA) View Scorecard
Pachynematus extensicornis grass sawfly arthropod bee, wasp limited n/a (already in CA)
Padda oryzivora Java sparrow vertebrate bird not present low
Palea steindachneri Wattle-necked softshell vertebrate reptile
Pammene fasciana chestnut leaf roller arthropod butterfly, moth not present low
Panicum antidotale blue panicgrass plant grass limited n/a (already in CA)
Panicum miliaceum wild proso millet plant grass limited n/a (already in CA)
Panicum repens torpedo grass plant grass limited n/a (already in CA)
Papaipema nebris stalk borer arthropod butterfly, moth not present moderate
Papilio demoleus lime swallowtail arthropod butterfly, moth not present moderate
Paramyxovirus hv Hendra Virus disease virus
Paramyxovirus mv Menangle Virus disease virus
Paramyxovirus nv Nipah Virus disease virus
Paramyxovirus-1 (PMV-1) Exotic newcastle disease (END) disease virus not present high View Scorecard
Paratachardina pseudolobata Lobate lac scale arthropod scale, aphid not present high
Parentucellia viscosa yellow glandweed plant herbaceous limited n/a (already in CA) View Scorecard
Parlatoria blanchardi parlatoria date scale arthropod scale, aphid not present high
Parlatoria pergandii chaff scale arthropod scale, aphid limited n/a (already in CA)
Parlatoria proteus sanseveria scale arthropod scale, aphid not present high
Parlatoria pseudaspidiotus vand orchid scale arthropod scale, aphid not present high
Parlatoria theae complex tea paralatoria scale - species complex arthropod scale, aphid not present high View Scorecard
Parlatoria vandae vanda paralatoria scale arthropod scale, aphid not present high
Parlatoria ziziphi black citrus scale arthropod scale, aphid not present high