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
Paroaria capitata Yellow-billed cardinal vertebrate bird
Paroaria coronata Red-crested cardinal vertebrate bird
Parthenium hysterophorus Santa Maria feverfew plant herbaceous limited n/a (already in CA) View Scorecard
Parus varius Varied tit vertebrate bird
Paspalum scrobiculatum Kodo-millet plant grass not present low
Passer domesticus House sparrow vertebrate bird widespread n/a (already in CA)
Passer montanus European tree sparrow vertebrate bird
Pasteurella multocida Avian cholera disease bacterium widespread n/a (already in CA) View Scorecard
Pavo cristatus Common peafowl vertebrate bird n/a (already in CA)
Pear Bud Drop Agent Pear Bud Drop Agent disease virus
Pecluvirus ipcv Indian Peanut Clump Virus disease virus
Pecluvirus pcv Peanut Clump Virus disease virus
Pectinophora gossypiella pink bollworm arthropod butterfly, moth limited n/a (already in CA) View Scorecard
Pectinophora scutigera pink-spotted bollworm arthropod butterfly, moth not present high
Peganum harmala harmel plant herbaceous not present high
Pelodiscus sinensis Chinese softshell vertebrate reptile
Pennisetum ciliare buffelgrass plant grass limited n/a (already in CA) View Scorecard
Pennisetum clandestinum kikuyugrass plant grass widespread n/a (already in CA)
Pennisetum macrourum African feathergrass plant grass not present low
Pennisetum pedicellatum Kyasumagrass plant grass not present low
Pennisetum polystachion missiongrass plant grass not present low
Pennisetum setaceum crimson fountaingrass plant grass widespread n/a (already in CA) View Scorecard
Pennisetum villosum feathergrass plant grass limited n/a (already in CA)
Perdix perdix Grey partridge vertebrate bird
Peronosclerospora maydis Downy Mildew of Corn/ Select agent disease oomycete
Peronosclerospora philippinensis (aka, sacchari) Philippine Downy mildew of sorghum/Select Agent disease oomycete not present
Peronosclerospora sacchari (philippinensis) Sugarcane Downy Mildew disease fungus not present low
Pestalotiopsis disseminata Parasitic Leaf Fungus disease fungus
Pestivirus CSFV strain Brescia Classical swine fever virus (strain Brescia) disease virus not present View Scorecard
Pezothrips kellyanus Kelly's citrus thrips arthropod thrips not present high View Scorecard
Phacidiopycnis pseudotsuga Douglas Fir Canker disease fungus
Phaeoramularia angolensis Phaeoramularia Fruit and Leaf Spot disease fungus
Phakopsora meibomiae soybean rust disease fungus not present high
Phakopsora pachyrhizi Asian soybean Rust disease fungus not present low View Scorecard
Phalaris aquatica hardinggrass plant grass widespread n/a (already in CA)
Phalaris arundinacea reed canarygrass plant grass limited n/a (already in CA)
Phascogale spp. Brush-tailed marsupial mouse vertebrate mammal
Phasianus colchicus Common pheasant vertebrate bird n/a (already in CA)
Phellinus noxius Brown root rot disease fungus
Phellinus senex Stem decay disease fungus
Phelsuma guimbeaui Orange-spotted day gecko vertebrate reptile
Phelsuma laticauda Gold dust day gecko vertebrate reptile
Phelsuma madagascariensis Giant day gecko vertebrate reptile
Phenococcus aceris apple mealybug arthropod scale, aphid not present high
Phenococcus manihoti cassava mealybug arthropod scale, aphid not present moderate
Phialophora cinerescens Phialophora wilt of carnations and strawberries disease fungus
Phlebia chrysocrea Wood decay disease fungus
Phlebovirus rvfv Rift Valley Fever disease virus
Phloeotribus liminarius peach bark beetle arthropod beetle not present high
Phloeotribus scarabaeoides Olive bark beetle arthropod beetle limited n/a (already in CA) View Scorecard
Phoenix canariensis Canary Island date palm plant woody limited n/a (already in CA) View Scorecard
Phoma tracheiphila Mal Secco disease fungus
Phomopsis vaccinii Phomopsis soft rot disease fungus not present moderate
Phoracantha spp. eucalyptus (longhorned) borer arthropod beetle limited n/a (already in CA)
Phragmites australis common reed plant grass limited n/a (already in CA)
Phrynosoma cornutum Texas horned lizard vertebrate reptile
Phthorimaea absoluta Tomato leafminer arthropod butterfly, moth not present high View Scorecard
Phyllody Agent Phyllody Agent disease virus
Phyllophaga congrua May beetle arthropod beetle not present moderate
Phyllophaga spp. white grubs arthropod beetle limited n/a (already in CA)
Phyllosticta colocasiophila Phyllosticta Leafspot disease fungus
Phylloxera devastatrix pecan phylloxera arthropod scale, aphid not present moderate
Physalis longifolia long-leaf groundcherry plant herbaceous not present moderate
Physalis viscosa grape groundcherry plant herbaceous limited n/a (already in CA)
Physoderma zeae-maydis Brown Spot of Corn disease fungus
Phytalus spp. white grubs arthropod beetle limited n/a (already in CA)
Phytolacca americana common pokeweed plant herbaceous widespread n/a (already in CA) View Scorecard
Phytomyza ilicicola native holly leafminer arthropod fly limited n/a (already in CA)
Phytomyza ilicis holly leafminer arthropod fly limited n/a (already in CA)
Phytophthora alni Alder Phytophthora disease oomycete not present moderate View Scorecard
Phytophthora alni Alder Phytophthora disease fungus not present low
Phytophthora cinnamomi Root Rot disease oomycete
Phytophthora fragariae Red Stele disease oomycete
Phytophthora infestans Late Blight disease oomycete
Phytophthora kernoviae Rhododendron Phytopthora disease disease oomycete
Phytophthora quercina Oak disease disease oomycete
Phytophthora ramorum Sudden oak death disease oomycete limited n/a (already in CA) View Scorecard
Phytoplasma bn Black wood disease phytoplasma
Phytoplasma eay European Aster Yellows disease phytoplasma
Phytoplasma esfy European Stone Fruit Yellows disease phytoplasma
Phytoplasma fd Flavescence doree disease phytoplasma
Phytoplasma md Mulberry Dwarf disease phytoplasma
Phytoplasma parastolbur-mlo Parastolbur disease phytoplasma
Phytoplasma rus Rubus stunt disease phytoplasma
Phytoplasma ryd-mlo Rice Yellow Dwarf disease phytoplasma
Phytoplasma scwl Sugarcane White Leaf Phytoplasma disease phytoplasma
Phytoplasma ulmi Elm yellows disease phytoplasma
Phytoreovirus rdv Rice Dwarf Virus disease virus
Phytoreovirus rgdv Rice Gall Dwarf Virus disease virus
Picris echioides bristly oxtongue plant herbaceous widespread n/a (already in CA)
Picris hieracioides hawkweed oxtongue plant herbaceous not present moderate
Pinnaspis buxi boxwood scale arthropod scale, aphid not present high
Pinnaspis strachani lesser snow scale arthropod scale, aphid not present high
Piptatherum miliaceum smilograss plant grass widespread n/a (already in CA)
Pissodes nemorensis eastern pine weevil arthropod beetle not present high
Pittosporum undulatum Victorian box plant woody limited n/a (already in CA)
Planococcus ficus vine mealybug arthropod scale, aphid limited n/a (already in CA) View Scorecard
Planococcus lilacinus coffee mealybug arthropod scale, aphid not present high
Planococcus minor (Maskell) Passionvine mealybug arthropod scale, aphid not present high View Scorecard
Plantago lanceolata buckhorn plantain plant herbaceous widespread n/a (already in CA)