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 Name | Common Name |
Type |
Subtype | Extent | Risk of Introduction | First Source | |
|---|---|---|---|---|---|---|---|
| Mimosa diplotricha | giant sensitive plant | plant | woody | not present | low | OR Weed List | |
| Mimosa invisa | giant sensitive plant | plant | woody | not present | low | USDA Plant/Pest | |
| Mimosa pellita | lollipop mimosa | plant | woody | not present | low | OR Weed List | |
| Mimosa pigra | catclaw mimosa | plant | woody | not present | low | USDA Plant/Pest | |
| Monochoria hastata | arrowleaf falsepickerelweed | plant | herbaceous | not present | low | USDA Plant/Pest | |
| Murdannia keisak | marsh dew flower | plant | herbaceous | not present | moderate | WA Weed List | |
| Myosoton aquaticum | giant chickweed | plant | herbaceous | not present | moderate | CDFA | |
| Najas minor | slender-leaved naiad | plant | herbaceous | not present | moderate | WA Weed List | |
| Nardus stricta | matgrass | plant | grass | not present | moderate | ID Weed List | |
| Nassella trichotoma | serrated tussock | plant | grass | not present | low | USDA Plant/Pest | |
| Opuntia aurantiaca | jointed prickly pear | plant | herbaceous | not present | low | USDA Plant/Pest | |
| Orobanche minor | small broomrape | plant | herbaceous | not present | high | OR Weed List | |
| Orobanche spp. | broomrape | plant | herbaceous | limited | n/a (already in CA) | USDA Plant/Pest | |
| Oryza longistaminata | red rice | plant | grass | not present | moderate | USDA Plant/Pest | |
| Oryza punctata | red rice | plant | grass | not present | moderate | USDA Plant/Pest | |
| Panicum repens | torpedo grass | plant | grass | limited | n/a (already in CA) | AZ Weed List | |
| Paspalum scrobiculatum | Kodo-millet | plant | grass | not present | low | USDA Plant/Pest | |
| Pennisetum macrourum | African feathergrass | plant | grass | not present | low | USDA Plant/Pest | |
| Pennisetum pedicellatum | Kyasumagrass | plant | grass | not present | low | USDA Plant/Pest | |
| Pennisetum polystachion | missiongrass | plant | grass | not present | low | USDA Plant/Pest | |
| Picris hieracioides | hawkweed oxtongue | plant | herbaceous | not present | moderate | WA Weed List | |
| Polygonum x bohemicum | Bohemian knotweed | plant | herbaceous | not present | moderate | WA Weed List | |
| Pontederia cordata | pickerelweed | plant | herbaceous | not present | moderate | CDFA | |
| Prosopis alpataco | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis argentina | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis articulata | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis burkartii | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis caldenia | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis calingastana | cusqui | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis campestris | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis castellanosii | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis denudans | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis elata | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis farcta | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis ferox | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis fiebrigii | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis hassleri | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis humilis | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis kuntzei | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis pallida | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis palmeria | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis reptans | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis rojasiana | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis ruizlealii | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis ruscifolia | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis sericantha | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Prosopis torquata | mesquite | plant | woody | not present | low | USDA Plant/Pest | |
| Pueraria montana var. lobata | kudzu | plant | herbaceous | not present | moderate | OR Weed List | |
| Rottboellia cochinchinensis | itchgrass | plant | grass | not present | moderate | USDA Plant/Pest | |
| Rubus moluccanus | wild raspberry | plant | woody | not present | low | USDA Plant/Pest | |
| Saccharum spontaneum | wild sugarcane | plant | grass | not present | low | USDA Plant/Pest | |
| Sagittaria graminea | grass-leaved arrowhead | plant | herbaceous | not present | high | WA Weed List | |
| Sagittaria sagittifolia | arrowhead | plant | herbaceous | not present | low | USDA Plant/Pest | |
| Salvia pratensis | meadow clary | plant | herbaceous | not present | moderate | WA Weed List | |
| Salvia sclarea | clary sage | plant | herbaceous | not present | moderate | WA Weed List | |
| Salvinia biloba | giant salvinia | plant | herbaceous | limited | n/a (already in CA) | USDA Plant/Pest | |
| Salvinia herzogii | giant salvinia | plant | herbaceous | limited | n/a (already in CA) | USDA Plant/Pest | |
| Senecio inaequidens | South African ragwort | plant | woody | not present | low | USDA Plant/Pest | |
| Senecio linearifolius | narrowleaf ragwort | plant | herbaceous | not present | low | CDFA | |
| Senecio madagascariensis | Madagascar ragwort | plant | herbaceous | not present | moderate | USDA Plant/Pest | |
| Senna obtusifolia | sicklepod | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
| Setaria pumila ssp. pallidefusca | cattail grass | plant | grass | not present | moderate | USDA Plant/Pest | |
| Solanum tampicense | wetland nightshade | plant | woody | not present | low | USDA Plant/Pest | |
| Solanum torvum | turkeyberry | plant | woody | not present | low | USDA Plant/Pest | |
| Solanum viarum | tropical soda apple | plant | herbaceous | not present | low | USDA Plant/Pest | |
| Sorghum almum | Columbus grass | plant | grass | not present | moderate | NV Weed List | |
| Sorghum propinquum | sorghum | plant | grass | not present | low | NV Weed List | |
| Sparganium erectum | exotic bur reed | plant | herbaceous | limited | n/a (already in CA) | USDA Plant/Pest | |
| Spermacoce alata | winged false buttonweed | plant | herbaceous | not present | low | USDA Plant/Pest | |
| Striga spp. | witchweed | plant | herbaceous | not present | high | USDA Plant/Pest | |
| Thymelaea passerina | spurge flax | plant | herbaceous | not present | moderate | WA Weed List | |
| Trapa bicornis | water caltrap | plant | herbaceous | not present | low | WA Weed List | |
| Trapa natans | water-chestnut | plant | herbaceous | not present | moderate | AZ Weed List | |
| Tridax procumbens | coat buttons | plant | herbaceous | not present | low | USDA Plant/Pest | |
| Tripleurospermum perforatum | scentless false mayweed | plant | herbaceous | not present | low | CO Weed List | |
| Tussilago farfara | coltsfoot | plant | herbaceous | not present | moderate | OR Weed List | |
| Urochloa panicoides | liverseed grass | plant | grass | not present | high | USDA Plant/Pest | |
| Utricularia inflata | swollen bladderwort | plant | herbaceous | not present | moderate | WA Weed List | |
| Vallisneria spp. | eelgrass | plant | herbaceous | not present | high | CDFA | |
| Cuscuta australis | Australian dodder | plant | herbaceous | not present | low | CDFA | |
| Cuscuta monogyna | Eastern Dodder | plant | herbaceous | not present | low | No list | |
| Cuscuta spp. (C. japonica, reflexa, australia, monogyna) | Dodder (non-native spp.) | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
| Caulerpa brachypus | Caulerpa brachypus | plant | algae | unknown | high | Hoffman NOAA | |
| Caulerpa racemosa | Caulerpa racemosa | plant | algae | VALUE REQUIRED | high | Hoffman NOAA | |
| Sargassum muticum | Sargassum muticum | plant | algae | limited | low | Hoffman NOAA | |
| Digitaria abyssinica | Digitaria abyssinica | plant | grass | not present | moderate | OR Weed List | |
| Lyngbya spp. | Lyngbya spp. | plant | algae | VALUE REQUIRED | VALUE REQUIRED | Hoffman NOAA | |
| Bromus madritensis ssp. rubens | red brome | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Alyssum murale | yellowtuft | plant | herbaceous | not present | moderate | OR Weed List | |
| Alyssum corsicum | yellowtuft | plant | herbaceous | not present | moderate | OR Weed List | |
| Globodera pallida | Pale cyst nematode | invertebrate | nematode | not present | moderate | NAPPA Phyto | |
| Globodera rostochiensis | Golden Nematode | invertebrate | nematode | not present | low | CDFA (reg. A) | |
| Hemicycliophora arenaria | sheath nematode | invertebrate | nematode | unknown | n/a (already in CA) | CDFA (reg. A) | |
| Pratylenchus coffeae | root-lesion nematode | invertebrate | nematode | unknown | moderate | CDFA (reg. C) | |
| Radopholus similis | Burrowing Nematode | invertebrate | nematode | not present | moderate | CDFA (reg. A) | |
| Rotylenchulus reniformis | Reniform Nematode | invertebrate | nematode | not present | moderate | CDFA (reg. A) | |
| Tylenchulus semipenetrans | citrus nematode | invertebrate | nematode | widespread | n/a (already in CA) | CDFA (reg. C) | |
| Dreissena polymorpha | Zebra mussels | invertebrate | aquatic mollusk, freshwater | limited | n/a (already in CA) | CAISMP | |
| Dreissena bugensis | Quagga mussels | invertebrate | aquatic mollusk, freshwater | limited | n/a (already in CA) | CAISMP | |
| Limnoperna fortunei | Golden mussel | invertebrate | aquatic mollusk, freshwater | not present | low | ANSIS |
