Plants in horticulture
Interested in finding out which horticultural plants may cause problems in California’s natural areas? The table below shows all plants from the Cal-IPC Inventory that are known to occur in horticulture. Plants with an asterisk (*) after the scientific name are “Watch” plants, which are not currently invasive in California but which have been assessed as a high risk of becoming invasive in California in the future.
- Click the scientific name to see the Risk Assessment for any plant.
- For the Plant Profile page, with links to more information about that plant, click the icon in the right column.
- To sort the list (for instance, by rating), click on the appropriate column heading.
- To show only the plants found in a given PlantRight Region, use the Region filter [under construction].
Scientific name | Common names | Rating | Alert | Profile |
---|---|---|---|---|
Acacia baileyana * | cootamundra wattle | Watch | ![]() | |
Acacia dealbata | silver wattle | Moderate | ![]() | |
Acacia longifolia * | Sydney golden wattle | Watch | ![]() | |
Acacia melanoxylon | blackwood Acacia | Limited | ![]() | |
Acacia saligna * | orange wattle | Watch | ![]() | |
Acaena novae-zelandiae * | biddy-biddy | Watch | ![]() | |
Agrostis stolonifera | creeping bent | Limited | ![]() | |
Ailanthus altissima | tree-of-heaven | Moderate | ![]() | |
Alopecurus pratensis * | meadow foxtail | Watch | ![]() | |
Araujia sericifera * | bladderflower | Watch | ![]() | |
Arctotheca calendula | fertile capeweed | Moderate | X | ![]() |
Arctotheca prostrata | capeweed | Moderate | ![]() | |
Arum italicum * | Italian Arum | Watch | ![]() | |
Arundo donax | giant reed | High | ![]() | |
Asparagus setaceus * | common Asparagus fern | Watch | ![]() | |
Asparagus aethiopicus * | Asparagus fern | Watch | ![]() | |
Asparagus asparagoides | bridal creeper | Moderate | X | ![]() |
Asphodelus fistulosus | onion weed | Moderate | X | ![]() |
Atriplex semibaccata | Australian saltbush | Moderate | ![]() | |
Berberis darwinii * | Darwin barberry | Watch | ![]() | |
Briza maxima | big quakinggrass | Limited | ![]() | |
Buddleja davidii * | butterfly bush | Watch | ![]() | |
Carex pendula * | hanging sedge | Watch | ![]() | |
Carpobrotus chilensis | sea fig | Moderate | ![]() | |
Carpobrotus edulis | highway iceplant | High | ![]() | |
Casuarina equisetifolia * | beach sheoak | Watch | ![]() | |
Catharanthus roseus * | Madagascar periwinkle | Watch | ![]() | |
Cestrum parqui * | willow jessamine | Watch | ![]() | |
Chasmanthe floribunda * | African cornflag | Watch | ![]() | |
Cortaderia jubata | jubatagrass | High | ![]() | |
Cortaderia selloana | pampasgrass | High | ![]() | |
Cotoneaster franchetii | orange Cotoneaster | Moderate | ![]() | |
Cotoneaster lacteus | milkflower Cotoneaster | Moderate | ![]() | |
Cotoneaster pannosus | silverleaf Cotoneaster | Moderate | ![]() | |
Cotula coronopifolia | common brassbuttons | Limited | ![]() | |
Crataegus monogyna | English hawthorn | Limited | ![]() | |
Crocosmia x crocosmiiflora | montbretia | Limited | ![]() | |
Cuscuta japonica * | Japanese dodder | Watch | ![]() | |
Cynara cardunculus | artichoke thistle | Moderate | ![]() | |
Cynodon dactylon | Bermuda grass | Moderate | ![]() | |
Cynoglossum officinale | common houndstongue | Moderate | ![]() | |
Cytisus scoparius | Scotch broom | High | ![]() | |
Cytisus striatus | Portuguese broom | Moderate | ![]() | |
Dactylis glomerata | orchard grass | Limited | ![]() | |
Datura inoxia * | pricklyburr | Watch | ![]() | |
Delairea odorata | Cape-ivy | High | ![]() | |
Digitalis purpurea | foxglove | Limited | ![]() | |
Dipogon lignosus * | Cape sweet pea | Watch | ![]() | |
Dipsacus fullonum | wild teasel | Moderate | ![]() | |
Echium candicans | pride-of-Madeira | Limited | ![]() | |
Egeria densa | Brazilian Egeria | High | ![]() | |
Eichhornia crassipes | water hyacinth | High | ![]() | |
Elaeagnus angustifolia | Russian olive | Moderate | ![]() | |
Erica lusitanica | Spanish heath | Limited | ![]() | |
Erodium cicutarium | redstem filaree | Limited | ![]() | |
Eucalyptus camaldulensis | red gum | Limited | ![]() | |
Eucalyptus cladocalyx * | sugargum | Watch | ![]() | |
Eucalyptus globulus | blue gum | Limited | ![]() | |
Euphorbia lathyris * | caper spurge | Watch | ![]() | |
Euphorbia myrsinites * | myrtle spurge | Watch | ![]() | |
Euphorbia oblongata | eggleaf spurge | Limited | ![]() | |
Fallopia ×bohemica * | Bohemian knotweed | Watch | ![]() | |
Festuca arundinacea | reed fescue | Moderate | ![]() | |
Ficus carica | edible fig | Moderate | ![]() | |
Foeniculum vulgare | fennel | Moderate | ![]() | |
Galenia pubescens * | coastal Galenia | Watch | ![]() | |
Gazania linearis | Gazania | Moderate | X | ![]() |
Genista monspessulana | French broom | High | ![]() | |
Geranium lucidum * | shining Geranium | Watch | ![]() | |
Grevillea robusta * | silkoak | Watch | ![]() | |
Gunnera tinctoria * | Chilean Gunnera | Watch | ![]() | |
Gypsophila paniculata * | baby's breath | Watch | ![]() | |
Hedera canariensis | Algerian ivy | High | ![]() | |
Hedera helix | English ivy | High | ![]() | |
Helianthus tuberosus * | Jerusalem artichoke | Watch | ![]() | |
Helichrysum petiolare | licorice plant | Limited | ![]() | |
Hieracium aurantiacum * | orange hawkweed | Watch | ![]() | |
Hirschfeldia incana | short-pod mustard | Moderate | ![]() | |
Holcus lanatus | common velvet grass | Moderate | ![]() | |
Hypericum androsaemum * | sweet-amber | Watch | ![]() | |
Hypericum canariense | Canary Island St. Johnswort | Moderate | X | ![]() |
Hypericum perforatum | St. John's wort | Limited | ![]() | |
Ilex aquifolium | English holly | Limited | ![]() | |
Impatiens glandulifera * | Himalayan balsam | Watch | ![]() | |
Ipomoea indica * | blue morning glory | Watch | ![]() | |
Iris pseudacorus | yellowflag Iris | Limited | ![]() | |
Isatis tinctoria | dyer's woad | Moderate | ![]() | |
Kniphofia uvaria * | redhot poker | Watch | ![]() | |
Kochia scoparia | Kochia | Limited | ![]() | |
Lantana camara * | Lantana | Watch | ![]() | |
Lathyrus latifolius * | perennial sweet pea | Watch | ![]() | |
Leptospermum laevigatum * | Australian tea tree | Watch | ![]() | |
Leucanthemum vulgare | ox-eye daisy | Moderate | ![]() | |
Linaria vulgaris | yellow toadflax | Moderate | ![]() | |
Lobularia maritima | sweet Alyssum | Limited | ![]() | |
Ludwigia hexapetala | creeping waterprimrose | High | ![]() | |
Ludwigia peploides | floating water primrose | High | ![]() | |
Lythrum junceum * | creeping loosestrife | Watch | ![]() | |
Lythrum salicaria | purple loosestrife | High | ![]() | |
Malephora crocea * | coppery Mesembryanthemum | Watch | ![]() | |
Marrubium vulgare | horehound | Limited | ![]() | |
Maytenus boaria * | mayten | Watch | ![]() | |
Melia azedarach * | Chinaberry tree | Watch | ![]() | |
Melinis repens * | Natal grass | Watch | ![]() | |
Mentha pulegium | pennyroyal | Moderate | ![]() | |
Mesembryanthemum crystallinum | crystalline iceplant | Moderate | X | ![]() |
Myoporum laetum | ngaio tree | Moderate | ![]() | |
Myosotis latifolia | common forget-me-not | Limited | ![]() | |
Myriophyllum aquaticum | parrotfeather | High | ![]() | |
Nassella trichotoma * | serrated tussock | Watch | ![]() | |
Nicotiana glauca | tree tobacco | Moderate | ![]() | |
Olea europaea | olive | Limited | ![]() | |
Onopordum acanthium | Scotch thistle | High | ![]() | |
Osteospermum calendulaceum * | stinking Roger | Watch | ![]() | |
Paspalum vaginatum * | seashore Paspalum | Watch | ![]() | |
Peganum harmala * | African-rue | Watch | ![]() | |
Pennisetum ciliare * | buffelgrass | Watch | ![]() | |
Pennisetum setaceum | crimson fountain grass | Moderate | ![]() | |
Pennisetum villosum * | feathertop | Watch | ![]() | |
Persicaria wallichii * | Himalayan knotweed | Watch | ![]() | |
Phalaris aquatica | harding grass | Moderate | ![]() | |
Phoenix canariensis | Canary Island date palm | Limited | ![]() | |
Phytolacca americana | common pokeweed | Limited | ![]() | |
Pittosporum undulatum * | Victorian box | Watch | ![]() | |
Plantago lanceolata | English plantain | Limited | ![]() | |
Plecostachys serpyllifolia * | petite-licorice | Watch | ![]() | |
Poa pratensis | Kentucky bluegrass | Limited | ![]() | |
Potentilla recta * | sulphur cinquefoil | Watch | ![]() | |
Prunus cerasifera | cherry plum | Limited | ![]() | |
Pulicaria paludosa * | Spanish false fleabane | Watch | ![]() | |
Pyracantha angustifolia | narrowleaf firethorn | Limited | ![]() | |
Pyrus calleryana * | Callery pear | Watch | ![]() | |
Ranunculus repens | creeping buttercup | Limited | ![]() | |
Rhamnus alaternus * | Italian buckthorn | Watch | ![]() | |
Ricinus communis | castor bean | Limited | ![]() | |
Robinia pseudoacacia | black locust | Limited | ![]() | |
Rubus armeniacus | Himalayan blackberry | High | ![]() | |
Saccharum ravennae | ravennagrass | Moderate | X | ![]() |
Salvia aethiopis | Mediterranean sage | Limited | ![]() | |
Saponaria officinalis | bouncing-bet | Limited | ![]() | |
Scabiosa atropurpurea * | pincushion flower | Watch | ![]() | |
Schinus molle | Peruvian peppertree | Limited | ![]() | |
Schinus terebinthifolia | Brazilian pepper tree | Moderate | X | ![]() |
Senecio angulatus * | creeping groundsel | Watch | ![]() | |
Senecio elegans * | redpurple ragwort | Watch | ![]() | |
Sesbania punicea | scarlet Wisteria | High | ![]() | |
Silybum marianum | milk thistle | Limited | ![]() | |
Solanum aviculare * | New Zealand nightshade | Watch | ![]() | |
Spartium junceum | Spanish broom | High | ![]() | |
Tamarix aphylla | athel | Limited | ![]() | |
Tamarix parviflora | smallflower tamarisk | High | ![]() | |
Tamarix ramosissima | saltcedar | High | ![]() | |
Tanacetum vulgare | common tansy | Moderate | ![]() | |
Triadica sebifera | Chinese tallow tree | Moderate | X | ![]() |
Verbascum thapsus | woolly mullein | Limited | ![]() | |
Verbena bonariensis * | tall vervain | Watch | ![]() | |
Vinca major | periwinkle | Moderate | ![]() | |
Washingtonia robusta | Mexican fan palm | Moderate | X | ![]() |
Watsonia meriana | bulbil Watsonia | Limited | ![]() | |
Zantedeschia aethiopica | calla lily | Limited | ![]() |