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) |