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 |
|
|---|---|---|---|---|---|---|---|
| Lolium multiflorum | Italian ryegrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Ludwigia hexapetala | Uruguay water-primrose | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Ludwigia peploides ssp. montevidensis | creeping water-primrose | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Lythrum hyssopifolium | hyssop loosestrife | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Marrubium vulgare | white horehound | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Medicago polymorpha | California burclover | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Mentha pulegium | pennyroyal | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Mesembryanthemum crystallinum | crystalline iceplant | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Myoporum laetum | myoporum | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Myosotis latifolia | common forget-me-not | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Myriophyllum aquaticum | parrotfeather | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Myriophyllum spicatum | Eurasian watermilfoil | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Nicotiana glauca | tree tobacco | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Olea europaea | olive | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Oxalis pes-caprae | Bermuda buttercup | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Parentucellia viscosa | yellow glandweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Pennisetum setaceum | crimson fountaingrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Phalaris aquatica | hardinggrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Phytolacca americana | common pokeweed | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Picris echioides | bristly oxtongue | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Piptatherum miliaceum | smilograss | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Plantago lanceolata | buckhorn plantain | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Polypogon monspeliensis and subspp. | rabbitfoot polypogon | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Potamogeton crispus | curlyleaf pondweed | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Prunus cerasifera | cherry plum | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Pyracantha angustifolia | pyracantha | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Ranunculus repens | creeping buttercup | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Raphanus sativus | radish | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Ricinus communis | castorbean | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Robinia pseudoacacia | black locust | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Rumex acetosella | red sorrel | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Rumex crispus | curly dock | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Salsola soda | oppositeleaf Russian thistle | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Saponaria officinalis | bouncingbet | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Schinus molle | Peruvian peppertree | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Schinus terebinthifolius | Brazilian peppertree | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Schismus arabicus | mediterraneangrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Schismus barbatus | mediterraneangrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Sesbania punicea | red sesbania | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Silybum marianum | blessed milkthistle | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Sinapis arvensis | wild mustard | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Sisymbrium irio | London rocket | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Spartina alterniflora | smooth cordgrass and hybrids | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Spartina alterniflora x foliosa hybrids | smooth cordgrass and hybrids | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Spartina densiflora | dense-flowered cordgrass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Spartium junceum | Spanish broom | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Tamarix aphylla | athel tamarisk | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Tamarix parviflora | smallflower tamarisk | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Tamarix ramosissima | saltcedar | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Tanacetum vulgare | common tansy | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Torilis arvensis | hedgeparsley | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Trifolium hirtum | rose clover | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Undaria pinnatifida | wakame | plant | algae | widespread | n/a (already in CA) | Cal-IPC list | |
| Verbascum thapsus | common mullein | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Vinca major | big periwinkle | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Vulpia myuros | rattail fescue | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Washingtonia robusta | Mexican fan palm | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Zantedeschia aethiopica | calla lily | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Acacia dealbata | silver wattle | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Acacia melanoxylon | black acacia | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Albizia lophantha | plume acacia | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Alternanthera philoxeroides | alligator weed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Asparagus asparagoides | bridal creeper | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Asphodelus fistulosus | onionweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Brachypodium distachyon | annual false-brome | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Cordyline australis | giant dracaena | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Crocosmia x crocosmiiflora | montbretia | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Ehrharta longiflora | long-flowered veldtgrass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Eucalyptus camaldulensis | red gum | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Helichrysum petiolare | licoriceplant | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Ilex aquifolium | English holly | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Saccharum ravennae | ravennagrass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Salvinia molesta | giant salvinia | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Sapium sebiferum | Chinese tallowtree | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Spartina anglica | common cordgrass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Spartina patens | saltmeadow cord grass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Stipa capensis | Mediterranean steppegrass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Verbena litoralis | tall vervain | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Watsonia meriana | bulbil watsonia | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Brachypodium sylvaticum | perennial false-brome | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Poa pratensis | Kentucky bluegrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Pyracantha coccinea | pyracantha | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Pyracantha crenulata | pyracantha | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Bromus madritensis ssp. rubens | red brome | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Paramyxovirus hv | Hendra Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | CDC | |
| Paramyxovirus nv | Nipah Virus | disease | virus | VALUE REQUIRED | VALUE REQUIRED | CDC | |
| Zygophyllum fabago | Syrian beancaper | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
| Oryza rufipogon | red rice | plant | grass | limited | n/a (already in CA) | CDFA | |
| Euphorbia serrata | serrate spurge | plant | herbaceous | not present | moderate | CDFA | |
| Halimodendron halodendron | Russian salttree | plant | woody | not present | moderate | CDFA | |
| Helianthus ciliaris | blueweed | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
| Salsola collina | spineless Russian thistle | plant | herbaceous | not present | high | CDFA | |
| Salsola vermiculata | wormleaf salsola | plant | herbaceous | not present | low | CDFA | |
| Salvia virgata | southern meadow sage | plant | herbaceous | not present | moderate | CDFA | |
| Scolymus hispanicus | golden thistle | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
| Senecio squalidus | Oxford ragwort | plant | herbaceous | not present | low | CDFA | |
| Solanum cardiophyllum | heartleaf nightshade | plant | herbaceous | not present | low | CDFA | |
| Solanum dimidiatum | Torrey's nightshade | plant | herbaceous | limited | n/a (already in CA) | CDFA | |
| Solanum marginatum | white-margined nightshade | plant | woody | limited | n/a (already in CA) | CDFA | |
| Sonchus arvensis | perennial sowthistle | plant | herbaceous | limited | n/a (already in CA) | CDFA |
