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 |