Plant Species Reported to be Invasive in Natural Areas List

Source: California Invasive Plant Council

Source URL: http://www.cal-ipc.org/ip/inventory/weedlist.php

208 Species

Subject Name Scientific Name Family U.S. Nativity
alligatorweed Alternanthera philoxeroides (Mart.) Griseb. Amaranthaceae Exotic
giant salvinia Salvinia molesta D. S. Mitchell Salviniaceae Exotic
Canada thistle Cirsium arvense (L.) Scop. Asteraceae Exotic
tree-of-heaven Ailanthus altissima (P. Mill.) Swingle Simaroubaceae Exotic
giant reed Arundo donax L. Poaceae Exotic
musk thistle Carduus nutans L. Asteraceae Exotic
spotted knapweed Centaurea stoebe ssp. micranthos (Gugler) Hayek Asteraceae Exotic
common teasel Dipsacus fullonum L. Dipsacaceae Exotic
Brazilian waterweed Egeria densa Planch. Hydrocharitaceae Exotic
common water hyacinth Eichhornia crassipes (Mart.) Solms Pontederiaceae Exotic
Russian olive Elaeagnus angustifolia L. Elaeagnaceae Exotic
English ivy Hedera helix L. Araliaceae Exotic
hydrilla Hydrilla verticillata (L. f.) Royle Hydrocharitaceae Exotic
tall fescue Festuca arundinacea Schreb. Poaceae Exotic
purple loosestrife Lythrum salicaria L. Lythraceae Exotic
parrotfeather Myriophyllum aquaticum (Vell.) Verdc. Haloragaceae Exotic
Eurasian water-milfoil Myriophyllum spicatum L. Haloragaceae Exotic
Chinese tallowtree Triadica sebifera (L.) Small Euphorbiaceae Exotic
common mullein Verbascum thapsus L. Scrophulariaceae Exotic
Tasmanian bluegum Eucalyptus globulus Labill. Myrtaceae Exotic
black locust Robinia pseudoacacia L. Fabaceae (Leguminosae) Native
bull thistle Cirsium vulgare (Savi) Ten. Asteraceae Exotic
spiny plumeless thistle Carduus acanthoides L. Asteraceae Exotic
leafy spurge Euphorbia esula L. Euphorbiaceae Exotic
Japanese knotweed Fallopia japonica (Houttuyn) Ronse-Decraene Polygonaceae Exotic
Brazilian peppertree Schinus terebinthifolius Raddi Anacardiaceae Exotic
yellow toadflax Linaria vulgaris P. Mill. Scrophulariaceae Exotic
gorse Ulex europaeus L. Fabaceae (Leguminosae) Exotic
meadow knapweed Centaurea moncktonii C. E. Britton[C. jacea X C. nigra] Asteraceae Exotic
Mediterranean sage Salvia aethiopis L. Lamiaceae Exotic
poison-hemlock Conium maculatum L. Apiaceae Exotic
Russian knapweed Rhaponticum repens (L.) Hidalgo Asteraceae Exotic
yellow starthistle Centaurea solstitialis L. Asteraceae Exotic
rush skeletonweed Chondrilla juncea L. Asteraceae Exotic
Scotch broom Cytisus scoparius (L.) Link Fabaceae (Leguminosae) Exotic
common St. Johnswort Hypericum perforatum L. Clusiaceae Exotic
common crupina Crupina vulgaris Cass. Asteraceae Exotic
tansy ragwort Senecio jacobaea L. Asteraceae Exotic
slenderflower thistle Carduus tenuiflorus W. Curtis Asteraceae Exotic
Scotch thistle Onopordum acanthium L. Asteraceae Exotic
dalmatian toadflax Linaria dalmatica ssp. dalmatica (L.) P. Mill. Scrophulariaceae Exotic
Italian plumeless thistle Carduus pycnocephalus L. Asteraceae Exotic
blessed milkthistle Silybum marianum (L.) Gaertn. Asteraceae Exotic
diffuse knapweed Centaurea diffusa Lam. Asteraceae Exotic
broomleaf toadflax Linaria genistifolia (L.) P. Mill. Scrophulariaceae Exotic
orchardgrass Dactylis glomerata L. Poaceae Exotic
big periwinkle Vinca major L. Apocynaceae Exotic
kikuyugrass Pennisetum clandestinum Hochst. ex Chiov. Poaceae Exotic
croftonweed Ageratina adenophora (Spreng.) King & H.E. Robins. Asteraceae Exotic
spiny emex Emex spinosa (Linnaeus) Campdera Polygonaceae Exotic
Dyer's woad Isatis tinctoria L. Brassicaceae Exotic
onionweed Asphodelus fistulosus Linnaeus Liliaceae Exotic
black acacia Acacia melanoxylon R. Br. ex Ait. f. Fabaceae (Leguminosae) Exotic
barb goatgrass Aegilops triuncialis L Poaceae Exotic
creeping bentgrass Agrostis stolonifera L. Poaceae Exotic
camelthorn Alhagi maurorum Medik Fabaceae (Leguminosae) Exotic
European beachgrass Ammophila arenaria (L.) Link Poaceae Exotic
capeweed Arctotheca calendula (L.) Levyns Asteraceae Exotic
Australian saltbush Atriplex semibaccata R. Br. Chenopodiaceae Exotic
slender oat Avena barbata Pott ex Link Poaceae Exotic
wild oat Avena fatua L. Poaceae Exotic
fivehook bassia Bassia hyssopifolia (Pallas) Kuntz Chenopodiaceae Exotic
bellardia Bellardia trixago (L.) All Scrophulariaceae Exotic
field brome Bromus arvensis L. Poaceae Exotic
annual false-brome Brachypodium distachyon (L.) Beauv. Poaceae Exotic
ripgut brome Bromus diandrus Roth Poaceae Exotic
soft brome Bromus hordeaceus ssp. hordeaceus L. Poaceae Exotic
black mustard Brassica nigra (L.) W.D.J. Koch Brassicaceae Exotic
birdsrape mustard Brassica rapa L. Brassicaceae Exotic
red brome Bromus rubens L. Poaceae Exotic
cheatgrass Bromus tectorum L. Poaceae Exotic
African mustard Brassica tournefortii Gouan Brassicaceae Exotic
orbicular whitetop Lepidium chalepense L. Brassicaceae Exotic
hoary cress Lepidium draba (L.) Desv Brassicaceae Exotic
hottentot fig Carpobrotus edulis (L.) N.E. Br Aizoaceae Exotic
woolly distaff thistle Carthamus lanatus L. Asteraceae Exotic
hairy whitetop Cardaria pubescens (C.A. Mey.) Brassicaceae Exotic
purple starthistle Centaurea calcitrapa L. Asteraceae Exotic
Malta starthistle Centaurea melitensis L. Asteraceae Exotic
purple pampasgrass Cortaderia jubata (Lem.) Stapf Poaceae Exotic
milkflower cotoneaster Cotoneaster coriaceus Franch. Rosaceae Exotic
silverleaf cotoneaster Cotoneaster pannosus Franch. Rosaceae Exotic
narrow-leaved iceplant Conicosia pugioniformis (L.) N.E. Br Aizoaceae Exotic
Uruguayan pampas grass Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. Poaceae Exotic
common hawthorn Crataegus monogyna Jacq. Rosaceae Exotic
cardoon Cynara cardunculus L. Asteraceae Exotic
bermudagrass Cynodon dactylon (L.) Pers Poaceae Exotic
houndstongue Cynoglossum officinale L. Boraginaceae Exotic
striated broom Cytisus striatus (Hill) Rothm Fabaceae (Leguminosae) Exotic
cape ivy Delairea odorata Lem Asteraceae Exotic
flixweed Descurainia sophia (L.) Webb ex Prantl Brassicaceae Exotic
foxglove Digitalis purpurea L. Scrophulariaceae Exotic
Fuller's teasel Dipsacus sativus (L.) Honckeny Dipsacaceae Exotic
perennial veldtgrass Ehrharta calycina Sm. Poaceae Exotic
panic veldtgrass Ehrharta erecta Lam. Poaceae Exotic
redstem filaree Erodium cicutarium (L.) L'Hér. ex Ait. Geraniaceae Exotic
cutleaf burnweed Erechtites glomeratus (Desf. ex Poir.) DC. Asteraceae Exotic
Australian burnweed Erechtites minimus (Poir.) DC Asteraceae Exotic
eggleaf spurge Euphorbia oblongata Griseb Euphorbiaceae Exotic
edible fig Ficus carica L. Moraceae Exotic
fennel Foeniculum vulgare P. Mill. Apiaceae Exotic
cutleaf geranium Geranium dissectum L. Geraniaceae Exotic
French broom Genista monspessulana (L.) L. Johnson Fabaceae (Leguminosae) Exotic
halogeton Halogeton glomeratus (Bieb.) C.A. Mey. Chenopodiaceae Exotic
strawflower Helichrysum petiolare Hilliard & Burtt Asteraceae Exotic
common velvetgrass Holcus lanatus L. Poaceae Exotic
Canary Island St. Johnswort Hypericum canariense L. Clusiaceae Exotic
hairy cat's ear Hypochaeris radicata L. Asteraceae Exotic
English holly Ilex aquifolium L. Aquifoliaceae Exotic
yellow iris Iris pseudacorus L. Iridaceae Exotic
Mexican fireweed Kochia scoparia (L.) A.J. Scott Chenopodiaceae Exotic
perennial pepperweed Lepidium latifolium L. Brassicaceae Exotic
oxeye daisy Leucanthemum vulgare Lam. Asteraceae Exotic
creeping waterprimrose Ludwigia peploides (Kunth) Raven Onagraceae Native
hyssop loosestrife Lythrum hyssopifolia L. Lythraceae Exotic
white horehound Marrubium vulgare L. Lamiaceae Exotic
crystalline iceplant Mesembryanthemum crystallinum L. Aizoaceae Exotic
California burclover Medicago polymorpha L. Fabaceae (Leguminosae) Exotic
pennyroyal Mentha pulegium L. Lamiaceae Exotic
ngaio tree Myoporum laetum G. Forst. Myoporaceae Exotic
tree tobacco Nicotiana glauca Graham Solanaceae Exotic
olive Olea europaea L. Oleaceae Exotic
foxtail restharrow Ononis alopecuroides L. Fabaceae (Leguminosae)
crimson fountaingrass Pennisetum setaceum (Forsk.) Chiov. Poaceae Exotic
common pokeweed Phytolacca americana L. Phytolaccaceae Native
bulbous canarygrass Phalaris aquatica L. Poaceae Exotic
timothy Phleum pratense L. Poaceae Exotic
buckhorn plantain Plantago lanceolata L. Plantaginaceae Exotic
annual bluegrass Poa annua L. Poaceae Exotic
curly-leaved pondweed Potamogeton crispus L. Potamogetonaceae Exotic
rabbitfoot polypogon Polypogon monspeliensis (L.) Desf. Poaceae Exotic
Kentucky bluegrass Poa pratensis L. Poaceae Native
giant knotweed Fallopia sachalinensis (F. Schmidt) Ronse-Decraene Polygonaceae Exotic
creeping buttercup Ranunculus repens L. Ranunculaceae Exotic
radish Raphanus sativus L. Brassicaceae Exotic
bridal broom Retama monosperma (L.) Boiss. Fabaceae (Leguminosae)
castorbean Ricinus communis L. Euphorbiaceae Exotic
red sorrel Rumex acetosella L. Polygonaceae Exotic
curly dock Rumex crispus L. Polygonaceae Exotic
Himalaya blackberry Rubus armeniacus Focke Rosaceae Exotic
Russian thistle Salsola kali L. Chenopodiaceae Exotic
bouncingbet Saponaria officinalis L. Caryophyllaceae Exotic
barbwire Russian-thistle Salsola paulsenii Litv. Chenopodiaceae Exotic
Russian-thistle Salsola tragus L. Chenopodiaceae Exotic
Arabian schismus Schismus arabicus Nees Poaceae Exotic
common mediterraneangrass Schismus barbatus (Loefl. ex L.) Thellung Poaceae Exotic
Peruvian peppertree Schinus molle L. Anacardiaceae Exotic
red sesbania Sesbania punicea (Cav.) Benth. Fabaceae (Leguminosae) Exotic
wild mustard Sinapis arvensis L. Brassicaceae Exotic
London rocket Sisymbrium irio L. Brassicaceae Exotic
common cordgrass Spartina anglica C.E. Hubbard Poaceae Exotic
denseflower cordgrass Spartina densiflora Brongn. Poaceae Exotic
Spanish broom Spartium junceum L. Fabaceae (Leguminosae) Exotic
saltmeadow cordgrass Spartina patens (Ait.) Muhl. Poaceae Native
Athel tamarisk Tamarix aphylla (L.) Karst. Tamaricaceae Exotic
medusahead Taeniatherum caput-medusae (L.) Nevski Poaceae Exotic
smallflower tamarisk Tamarix parviflora DC. Tamaricaceae Exotic
saltcedar Tamarix ramosissima Ledeb. Tamaricaceae Exotic
common tansy Tanacetum vulgare L. Asteraceae Exotic
spreading hedgeparsley Torilis arvensis (Huds.) Link Apiaceae Exotic
rattail fescue Vulpia myuros (L.) K.C. Gmel. Poaceae Exotic
sweet vernalgrass Anthoxanthum odoratum L. Poaceae Exotic
Canary Island date palm Phoenix canariensis hort. ex Chabaud Arecaceae Exotic
cherry plum Prunus cerasifera Ehrh. Rosaceae Exotic
ravennagrass Ripidium ravennae (L.) Trinius Poaceae Exotic
Geraldton carnation weed Euphorbia terracina L. Euphorbiaceae Exotic
river redgum Eucalyptus camaldulensis Dehnhardt Myrtaceae Exotic
big quakinggrass Briza maxima L. Poaceae Exotic
Asian kelp Undaria pinnatifida (Harvey) Suringar Alariaceae Exotic
perennial false-brome Brachypodium sylvaticum (Huds.) Beauv. Poaceae Exotic
shortpod mustard Hirschfeldia incana (L.) Lagrèze-Fossat Brassicaceae Exotic
mouse barley Hordeum murinum L. Poaceae Exotic
Italian ryegrass Festuca perennis (L.) Columbus & J.P. Sm. Poaceae Exotic
scarlet firethorn Pyracantha coccinea M. Roemer Rosaceae Exotic
narrowleaf firethorn Pyracantha angustifolia (Franch.) Schneid. Rosaceae Exotic
yellow glandweed Parentucellia viscosa (L.) Caruel Scrophulariaceae Exotic
Washington fan palm Washingtonia robusta H. Wendl. Arecaceae Exotic
water primrose Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz Onagraceae Exotic
silver wattle Acacia dealbata Link Fabaceae (Leguminosae) Exotic
Pacific bentgrass Agrostis avenacea J.F. Gmel. Poaceae Exotic
African asparagus fern Asparagus asparagoides (L.) Druce Liliaceae Exotic
European sea-rocket Cakile maritima Scop. Brassicaceae Exotic
sea fig Carpobrotus chilensis (Molina) N.E. Br. Aizoaceae Exotic
crowndaisy Glebionis coronaria (L.) Tzvelev Asteraceae Exotic
cabbage tree Cordyline australis (G. Forst.) Endl. Liliaceae Exotic
brassbuttons Cotula coronopifolia L. Asteraceae Exotic
montbretia Crocosmia x crocosmiiflora (V. Lemoine) N.E. Br. [aurea × pottsii] Iridaceae Exotic
hedgehog dogtailgrass Cynosurus echinatus L. Poaceae Exotic
stinkwort Dittrichia graveolens (L.) W. Greuter Asteraceae Exotic
pride of Madeira Echium candicans L. f. Boraginaceae Exotic
longflowered veldtgrass Ehrharta longiflora Sm. Poaceae Exotic
waxy mannagrass Glyceria declinata Brébiss. Poaceae Exotic
sweet alyssum Lobularia maritima (L.) Desv. Brassicaceae Exotic
broadleaf forget-me-not Myosotis latifolia Poir. Boraginaceae Exotic
buttercup oxalis Oxalis pes-caprae L. Oxalidaceae Exotic
bristly oxtongue Helminthotheca echioides (L.) Holub Asteraceae Exotic
smilograss Piptatherum miliaceum (L.) Coss. Poaceae Exotic
oppositeleaf Russian thistle Salsola soda L. Chenopodiaceae Exotic
rose clover Trifolium hirtum All. Fabaceae (Leguminosae) Exotic
bulbil bugle-lily Watsonia meriana (L.) P. Mill. Iridaceae Exotic
calla lily Zantedeschia aethiopica (L.) Spreng. Araceae Exotic
squarrose knapweed Centaurea virgata ssp. squarrosa Lam. Asteraceae Exotic
smooth cat's ear Hypochaeris glabra L. Asteraceae Exotic
floating primrose-willow Ludwigia peploides ssp. montevidensis (Spreng.) P.H. Raven Onagraceae Exotic
meadow knapweed Centaurea debeauxii Gren. & Godr. [excluded] Asteraceae Exotic
Nepalese firethorn Pyracantha crenulata (D. Don) Roem. Rosaceae Exotic
seaside barley Hordeum marinum Huds. Poaceae Exotic
cordgrass hybrid Spartina foliosa x alterniflora N/A Poaceae Exotic