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 |
|
|---|---|---|---|---|---|---|---|
| Anthoxanthum odoratum | sweet vernalgrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Arundo donax | giant reed | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Atriplex semibaccata | Australian saltbush | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Avena barbata | slender wild oat | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Avena fatua | wild oat | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Bassia hyssopifolia | fivehook bassia | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Bellardia trixago | bellardia | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Brassica nigra | black mustard | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Brassica rapa | birdsrape mustard | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Brassica tournefortii | Saharan mustard | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Briza maxima | big quackingrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Bromus diandrus | ripgut brome | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Bromus hordeaceus | soft brome | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Bromus japonicus | Japanese brome | plant | grass | widespread | 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 | |
| Bromus tectorum | downy brome | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Cakile maritima | European sea-rocket | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Carpobrotus edulis | iceplant | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Centaurea debeauxii | meadow knapweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Centaurea virgata ssp. Squarrosa | squarrose knapweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Chrysanthemum coronarium | crown daisy | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Cirsium vulgare | bull thistle | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Conicosia pugioniformis | narrowleaf iceplant | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Conium maculatum | poison-hemlock | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Cortaderia jubata | jubatagrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Cortaderia selloana | pampasgrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Cotoneaster franchetii | orange cotoneaster | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Cotoneaster lacteus | Parney's cotoneaster | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Cotoneaster pannosus | silverleaf cotoneaster | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Cotula coronopifolia | brassbuttons | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Crataegus monogyna | hawthorn | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Cynoglossum officinale | houndstongue | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Cynosurus echinatus | hedgehog dogtailgrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Cytisus striatus | Portuguese broom | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Dactylis glomerata | orchardgrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Delairea odorata | Cape-ivy | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Descurainia sophia | flixweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Digitalis purpurea | foxglove | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Dipsacus fullonum | common teasel | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Dipsacus sativus | fuller's teasel | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Dittrichia graveolens | stinkwort | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Echium candicans | pride-of-Madeira | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Egeria densa | Brazilian egeria | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Ehrharta calycina | purple veldtgrass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Ehrharta erecta | erect veldtgrass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Eichhornia crassipes | water hyacinth | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Elaeagnus angustifolia | Russian-olive | plant | woody | limited | n/a (already in CA) | Cal-IPC list | |
| Emex spinosa | devil's-thorn | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Erechtites glomerata | Australian fireweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Erechtites minima | Australian fireweed | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Erodium cicutarium | redstem filaree | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Eucalyptus globulus | Tasmanian blue gum | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Festuca arundinacea | tall fescue | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Ficus carica | edible fig | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Foeniculum vulgare | fennel | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Geranium dissectum | cutleaf geranium | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Glyceria declinata | waxy mannagrass | plant | grass | limited | n/a (already in CA) | Cal-IPC list | |
| Hedera canariensis | Algerian ivy | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Hedera helix | English ivy | plant | woody | widespread | n/a (already in CA) | Cal-IPC list | |
| Hirschfeldia incana | shortpod mustard | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Holcus lanatus | common velvet grass | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Hordeum marinum | Mediterranean barley | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Hordeum murinum | Mediterranean barley | plant | grass | widespread | n/a (already in CA) | Cal-IPC list | |
| Hypochaeris radicata | rough catsear | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Kochia scoparia | kochia | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Leucanthemum vulgare | ox-eye daisy | plant | herbaceous | widespread | n/a (already in CA) | Cal-IPC list | |
| Linaria vulgaris | yellow toadflax | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| Lobularia maritima | sweet alyssum | plant | herbaceous | limited | n/a (already in CA) | Cal-IPC list | |
| 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 |
