The Cal-IPC Inventory
The Inventory categorizes plants that threaten California's natural areas. The Inventory includes plants that currently cause damage in California (invasive plants) as well as "Watch" plants that are a high risk of becoming invasive in the future. For information about the Inventory, see "Inventory Details" below.The Inventory represents the best available knowledge of invasive plant experts in California. Categorization is based on an assessment of ecological impacts, conducted with transparent science-based criteria and expert review. The Inventory has no regulatory authority, and should be used with full understanding of the limitations described here.
Background
Explanation of Cal-IPC ratings
About the Inventory assessment process
History of Inventory Updates (2018-present)
Assessed, Not on Inventory
Plants are not listed on the Inventory when our assessment finds insignificant current impact and/or insufficient risk of becoming invasive in the future to qualify as a Watch plant. See the list of plants that have been assessed and not added to the Inventory
Pending Assessment
We maintain a list of plants that need to be assessed for current invasiveness or risk of future invasiveness. We draw from this list for periodic updates to the Inventory. See the list of plants pending assessment
Problematic Natives
A handful of native species cause ecological problems where they have been moved outside their historic range in California.
See list of problematic native plants
Using the Inventory table:
- Click a plant’s Scientific Name to see its Plant Profile page. For the plant’s assessment, click the icon in the far right column, PAF/PRE.
- The CDFA column lists California Dept. of Food and Agriculture weed ratings (see CDFA definitions here). A checkmark in the Hort column denotes plants that are known from horticulture; the icon in the CWM column links to the CalWeedMapper page for the plant; the icon in the ID card links to a species identification card for the plant, if available (complete listing of Species ID Cards).
- To sort the table by any column heading (except ID Card), simply click on the column heading. To list only plants from certain Jepson Regions or Habitat Types, use the filters below.
- “Watch” species are not currently invasive in California. Assessment has found them to be a high risk for becoming invasive in the future.
Scientific name | Common names | Rating | Alert | CDFA | Hort | CWM | ID card | PAF/ PRE |
---|---|---|---|---|---|---|---|---|
Acacia baileyana | cootamundra wattle | Watch | ✔ | |||||
Acacia cyclops | cyclops Acacia | Watch | ||||||
Acacia dealbata | silver wattle | Moderate | ✔ | |||||
Acacia longifolia | Sydney golden wattle | Watch | ✔ | |||||
Acacia melanoxylon | blackwood Acacia | Limited | ✔ | |||||
Acacia paradoxa | kangaroothorn | Watch | -* | |||||
Acacia pycnantha | golden wattle | Watch | ||||||
Acacia saligna | orange wattle | Watch | ✔ | |||||
Acaena novae-zelandiae | biddy-biddy | Watch | -* | ✔ | ||||
Aegilops cylindrica | jointed goatgrass | Watch | -* | |||||
Aegilops triuncialis | barb goatgrass | High | -* | |||||
Ageratina adenophora | eupatory | Moderate | B | |||||
Agrostis avenacea | Pacific bentgrass | Limited | ||||||
Agrostis stolonifera | creeping bent | Limited | ✔ | |||||
Ailanthus altissima | tree-of-heaven | Moderate | C* | ✔ | ||||
Alhagi maurorum | camelthorn | Moderate | -* | |||||
Alliaria petiolata | garlic mustard | Moderate | ◆ | A* | ||||
Alopecurus pratensis | meadow foxtail | Watch | ✔ | |||||
Alternanthera philoxeroides | alligatorweed | High | A* | |||||
Alyssum corsicum | yellowtuft | Watch | ||||||
Alyssum murale | yellowtuft | Watch | ||||||
Ambrosia trifida | giant ragweed | Watch | B* | |||||
Ammophila arenaria | European beachgrass | High | ||||||
Anthoxanthum odoratum | sweet vernal grass | Limited | ||||||
Araujia sericifera | bladderflower | Watch | -* | ✔ | ||||
Arctotheca calendula | fertile capeweed | Moderate | ◆ | A* | ✔ | |||
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 | ◆ | ✔ | ||||
Asphodelus fistulosus | onion weed | Moderate | ◆ | -* | ✔ | |||
Atriplex semibaccata | Australian saltbush | Moderate | ✔ | |||||
Avena barbata | slender oat | Moderate | ||||||
Avena fatua | wild oats | Moderate | ||||||
Bassia hyssopifolia | five-hook Bassia | Limited | ||||||
Bellardia trixago | Bellardia | Limited | ||||||
Berberis darwinii | Darwin barberry | Watch | ✔ | |||||
Berteroa incana | hoary Alyssum | Watch | -* | |||||
Brachypodium distachyon | annual false-brome | Moderate | ||||||
Brachypodium sylvaticum | slender false-brome | Moderate | ◆ | -* | ||||
Brassica nigra | black mustard | Moderate | ||||||
Brassica rapa | field mustard | Limited | ||||||
Brassica tournefortii | Sahara mustard | High | C | |||||
Briza maxima | big quakinggrass | Limited | ✔ | |||||
Bromus diandrus | ripgut brome | Moderate | ||||||
Bromus hordeaceus | soft brome | Limited | ||||||
Bromus japonicus | Japanese brome | Limited | ||||||
Bromus madritensis ssp. rubens | red brome | High | ||||||
Bromus tectorum | cheatgrass | High | C | |||||
Buddleja davidii | butterfly bush | Watch | ✔ | |||||
Cakile maritima | European sea rocket | Limited | ||||||
Carduus acanthoides | plumeless thistle | Limited | -* | |||||
Carduus nutans | musk thistle | Moderate | -* | |||||
Carduus pycnocephalus | Italian thistle | Moderate | C* | |||||
Carduus tenuiflorus | slenderflower thistle | Limited | -* | |||||
Carex pendula | hanging sedge | Watch | ✔ | |||||
Carpobrotus chilensis | sea fig | Moderate | ✔ | |||||
Carpobrotus edulis | highway iceplant | High | ✔ | |||||
Carrichtera annua | Ward's weed | Moderate | ◆ | A | ||||
Carthamus lanatus | woolly distaff thistle | High | -* | |||||
Casuarina equisetifolia | beach sheoak | Watch | ✔ | |||||
Catharanthus roseus | Madagascar periwinkle | Watch | ✔ | |||||
Cenchrus echinatus | southern sandbur | Watch | B* | |||||
Cenchrus longispinus | mat sandbur | Watch | B* | |||||
Centaurea calcitrapa | purple starthistle | Moderate | -* | |||||
Centaurea diffusa | diffuse knapweed | Moderate | -* | |||||
Centaurea diluta | North African knapweed | Watch | ||||||
Centaurea jacea ssp. pratensis | meadow knapweed | Moderate | ◆ | -* | ||||
Centaurea melitensis | tocalote | Moderate | -* | |||||
Centaurea solstitialis | yellow starthistle | High | -* | |||||
Centaurea stoebe ssp. micranthos | spotted knapweed | High | -* | |||||
Centaurea virgata var. squarrosa | squarrose knapweed | Moderate | -* | |||||
Cestrum parqui | willow jessamine | Watch | ✔ | |||||
Chasmanthe floribunda | African cornflag | Watch | ✔ | |||||
Chondrilla juncea | skeleton weed | Moderate | -* | |||||
Chrysanthemoides monilifera ssp. monilifera | boneseed | Moderate | ◆ | A | ||||
Cirsium arvense | Canada thistle | Moderate | -* | |||||
Cirsium vulgare | bull thistle | Moderate | -* | |||||
Clematis vitalba | old man's beard | Moderate | ◆ | A | ✔ | |||
Colocasia esculenta | taro root | Moderate | ◆ | |||||
Conicosia pugioniformis | narrowleaf iceplant | Limited | ||||||
Conium maculatum | poison-hemlock | Moderate | ||||||
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 | ✔ | |||||
Crupina vulgaris | common Crupina | Limited | A* | |||||
Cuscuta japonica | Japanese dodder | Watch | -* | |||||
Cynara cardunculus | artichoke thistle | Moderate | -* | ✔ | ||||
Cynodon dactylon | Bermuda grass | Moderate | ✔ | |||||
Cynoglossum officinale | common houndstongue | Moderate | ✔ | |||||
Cynosurus echinatus | hedgehog dogtail | Moderate | ||||||
Cytisus multiflorus | white Spanish broom | Watch | ||||||
Cytisus proliferus | tagasaste | Watch | ||||||
Cytisus scoparius | Scotch broom | High | -* | ✔ | ||||
Cytisus striatus | Portuguese broom | Moderate | B | ✔ | ||||
Dactylis glomerata | orchard grass | Limited | ✔ | |||||
Datura inoxia | pricklyburr | Watch | ✔ | |||||
Delairea odorata | Cape-ivy | High | -* | ✔ | ||||
Descurainia sophia | tansy mustard | Limited | ||||||
Digitalis purpurea | foxglove | Limited | ✔ | |||||
Dipogon lignosus | Cape sweet pea | Watch | ✔ | |||||
Dipsacus fullonum | wild teasel | Moderate | ✔ | |||||
Dipsacus laciniatus | cutleaf teasel | Watch | ||||||
Dipsacus sativus | Fuller's teasel | Moderate | ||||||
Dittrichia graveolens | stinkwort | Moderate | ◆ | -* | ||||
Dittrichia viscosa | false yellowhead | Watch | A | |||||
Echium candicans | pride-of-Madeira | Limited | ✔ | |||||
Echium plantagineum | Patterson's curse | Watch | A | |||||
Egeria densa | Brazilian Egeria | High | ✔ | |||||
Ehrharta calycina | purple veldtgrass | High | ||||||
Ehrharta erecta | panic veldtgrass | Moderate | ||||||
Ehrharta longiflora | long-flowered veldtgrass | Limited | ||||||
Eichhornia crassipes | water hyacinth | High | ✔ | |||||
Elaeagnus angustifolia | Russian olive | Moderate | ✔ | |||||
Elymus caput-medusae | medusahead | High | -* | |||||
Emex spinosa | devil's thorn | Moderate | ◆ | |||||
Erica lusitanica | Spanish heath | Limited | B | ✔ | ||||
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 | A | ✔ | ||||
Euphorbia oblongata | eggleaf spurge | Limited | -* | ✔ | ||||
Euphorbia terracina | carnation spurge | Limited | -* | |||||
Euphorbia virgata | leafy spurge | High | -* | |||||
Fallopia ×bohemica | Bohemian knotweed | Watch | A | ✔ | ||||
Fallopia japonica | Japanese knotweed | Moderate | ◆ | A* | ||||
Fallopia sachalinensis | giant knotweed | Moderate | ◆ | A* | ||||
Festuca arundinacea | reed fescue | Moderate | ✔ | |||||
Festuca myuros | rat-tail fescue | Moderate | ||||||
Festuca perennis | Italian ryegrass | Moderate | ||||||
Ficus carica | edible fig | Moderate | ✔ | |||||
Foeniculum vulgare | fennel | Moderate | ✔ | |||||
Galega officinalis | professorweed | Watch | A* | |||||
Galenia pubescens | coastal Galenia | Watch | ||||||
Gazania linearis | Gazania | Moderate | ◆ | ✔ | ||||
Genista linifolia | Mediterranean broom | Watch | ||||||
Genista monosperma | bridal veil broom | Moderate | ◆ | -* | ||||
Genista monspessulana | French broom | High | C* | ✔ | ||||
Geranium dissectum | cutleaf Geranium | Limited | ||||||
Geranium lucidum | shining Geranium | Watch | A | ✔ | ||||
Geranium purpureum | little robin | Limited | ||||||
Glebionis coronaria | garland Chrysanthemum | Limited | ||||||
Glyceria declinata | mannagrass | Moderate | ||||||
Grevillea robusta | silkoak | Watch | ✔ | |||||
Gunnera tinctoria | Chilean Gunnera | Watch | ✔ | |||||
Gypsophila paniculata | baby's breath | Watch | B | ✔ | ||||
Halogeton glomeratus | Halogeton | Moderate | B* | |||||
Hedera canariensis | Algerian ivy | High | ✔ | |||||
Hedera helix | English ivy | High | ✔ | |||||
Helianthus tuberosus | Jerusalem artichoke | Watch | ✔ | |||||
Helichrysum petiolare | licorice plant | Limited | ✔ | |||||
Heliotropium amplexicaule | clasping heliotrope | Watch | ||||||
Helminthotheca echioides | bristly ox-tongue | Limited | ||||||
Heracleum mantegazzianum | giant hogweed | Watch | A | |||||
Hieracium aurantiacum | orange hawkweed | Watch | B | ✔ | ||||
Hirschfeldia incana | short-pod mustard | Moderate | ✔ | |||||
Holcus lanatus | common velvet grass | Moderate | ✔ | |||||
Hordeum marinum | Mediterranean barley | Moderate | ||||||
Hordeum murinum | hare barley | Moderate | ||||||
Hydrilla verticillata | Hydrilla | High | A* | |||||
Hyparrhenia hirta | Tambookie grass | Watch | ||||||
Hypericum androsaemum | sweet-amber | Watch | ✔ | |||||
Hypericum canariense | Canary Island St. Johnswort | Moderate | ◆ | B* | ✔ | |||
Hypericum grandifolium | large-leaved Hypericum | Watch | ||||||
Hypericum perforatum | St. John's wort | Limited | C* | ✔ | ||||
Hypochaeris glabra | smooth cat's-ear | Limited | ||||||
Hypochaeris radicata | rough cat's-ear | Moderate | ||||||
Ilex aquifolium | English holly | Limited | ✔ | |||||
Impatiens glandulifera | Himalayan balsam | Watch | ✔ | |||||
Ipomoea indica | blue morning glory | Watch | ✔ | |||||
Iris pseudacorus | yellowflag Iris | Limited | B | ✔ | ||||
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 | ✔ | |||||
Lepidium chalepense | lens-podded hoary cress | Moderate | ◆ | -* | ||||
Lepidium draba | heart-podded hoary cress | Moderate | -* | |||||
Lepidium latifolium | perennial pepperweed | High | -* | |||||
Leptospermum laevigatum | Australian tea tree | Watch | ✔ | |||||
Leucanthemum vulgare | ox-eye daisy | Moderate | ✔ | |||||
Ligustrum lucidum | glossy privet | Limited | ||||||
Limnobium spongia | South American spongeplant | High | -* | |||||
Limonium duriusculum | European sea lavender | Moderate | B | |||||
Limonium ramosissimum | Algerian sea lavender | Limited | B | |||||
Linaria dalmatica ssp. dalmatica | Dalmatian toadflax | Moderate | -* | |||||
Linaria vulgaris | yellow toadflax | Moderate | ✔ | |||||
Lobularia maritima | sweet Alyssum | Limited | ✔ | |||||
Ludwigia hexapetala | creeping waterprimrose | High | C* | ✔ | ||||
Ludwigia peploides | floating water primrose | High | ✔ | |||||
Lythrum hyssopifolia | hyssop loosestrife | Moderate | ||||||
Lythrum junceum | creeping loosestrife | Watch | ✔ | |||||
Lythrum salicaria | purple loosestrife | High | -* | ✔ | ||||
Malephora crocea | coppery Mesembryanthemum | Watch | ✔ | |||||
Marrubium vulgare | horehound | Limited | ✔ | |||||
Maytenus boaria | mayten | Watch | ✔ | |||||
Medicago polymorpha | California burclover | Limited | ||||||
Melia azedarach | Chinaberry tree | Watch | ✔ | |||||
Melinis repens | Natal grass | Watch | ✔ | |||||
Mentha pulegium | pennyroyal | Moderate | ✔ | |||||
Mesembryanthemum crystallinum | crystalline iceplant | Moderate | ◆ | ✔ | ||||
Mesembryanthemum nodiflorum | slenderleaf iceplant | Limited | ||||||
Myoporum laetum | ngaio tree | Moderate | ✔ | |||||
Myosotis latifolia | common forget-me-not | Limited | ✔ | |||||
Myriophyllum aquaticum | parrotfeather | High | C | ✔ | ||||
Myriophyllum spicatum | spike watermilfoil | High | ||||||
Nardus stricta | matgrass | Watch | ||||||
Nasella trichotoma | serrated tussock | Watch | ✔ | |||||
Nicotiana glauca | tree tobacco | Moderate | ✔ | |||||
Nothoscordum gracile | false garlic | Watch | -* | |||||
Olea europaea | olive | Limited | ✔ | |||||
Oncosiphon pilulifer | stinknet | High | Q | |||||
Ononis alopecuroides | foxtail restharrow | Limited | -* | |||||
Onopordum acanthium | Scotch thistle | High | -* | ✔ | ||||
Onopordum illyricum | Illyerian thistle | Watch | -* | |||||
Orobanche aegyptiaca | Egyptian broomrape | Watch | A | |||||
Osteospermum calendulaceum | Egyptian broomrape | Watch | A | |||||
Oxalis pes-caprae | Bermuda buttercup | Moderate | ||||||
Paraserianthes lophantha | plume Acacia | Watch | ||||||
Parentucellia viscosa | yellow glandweed | Limited | ||||||
Parthenium hysterophorus | Santa Maria feverfew | Watch | A* | |||||
Paspalum urvillei | Vasey's grass | Watch | ||||||
Paspalum vaginatum | seashore Paspalum | Watch | ✔ | |||||
Passiflora tarminiana | banana passionfruit | Watch | ||||||
Peganum harmala | African-rue | Watch | -* | ✔ | ||||
Pennisetum ciliare | buffelgrass | Watch | ✔ | |||||
Pennisetum clandestinum | Kikuyu grass | Limited | C* | |||||
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 | ✔ | |||||
Polygala myrtifolia | myrtle-leaf milkwort | Watch | ||||||
Polypogon monspeliensis | rabbitsfoot grass | Limited | ||||||
Potamogeton crispus | curly-leaved pondweed | Moderate | ||||||
Potentilla recta | sulphur cinquefoil | Watch | -* | ✔ | ||||
Prunus cerasifera | cherry plum | Limited | ✔ | |||||
Pulicaria paludosa | Spanish false fleabane | Watch | ||||||
Pyracantha angustifolia | narrowleaf firethorn | Limited | ✔ | |||||
Pyracantha coccinea | scarlet firethorn | Limited | ||||||
Pyracantha crenulata | Nepalese firethorn | Limited | ||||||
Pyrus calleryana | Callery pear | Watch | ✔ | |||||
Ranunculus repens | creeping buttercup | Limited | ✔ | |||||
Raphanus sativus | wild radish | Limited | ||||||
Rhamnus alaternus | Italian buckthorn | Watch | ✔ | |||||
Rhaponticum repens | Russian knapweed | Moderate | B* | |||||
Ricinus communis | castor bean | Limited | ✔ | |||||
Robinia pseudoacacia | black locust | Limited | ✔ | |||||
Romulea rosea var. australis | rosy sandcrocus | Watch | ||||||
Rubus armeniacus | Himalayan blackberry | High | ✔ | |||||
Rumex acetosella | sheep sorrel | Moderate | ✔ | |||||
Rumex crispus | curly dock | Limited | ||||||
Rytidosperma caespitosum | wallabygrass | Watch | ||||||
Rytidosperma penicillatum | hairy wallaby grass | Limited | ||||||
Saccharum ravennae | ravennagrass | Moderate | ◆ | B* | ✔ | |||
Salpichroa origanifolia | lily of the valley vine | Watch | C | |||||
Salsola paulsenii | barbwire Russian thistle | Limited | -* | |||||
Salsola ryanii | Ryan's Russian thistle | Watch | ||||||
Salsola soda | glasswort | Moderate | ||||||
Salsola tragus | Russian thistle | Limited | C* | |||||
Salvia aethiopis | Mediterranean sage | Limited | -* | ✔ | ||||
Salvinia molesta | giant Salvinia | High | -* | |||||
Saponaria officinalis | bouncing-bet | Limited | ✔ | |||||
Scabiosa atropurpurea | pincushion flower | Watch | ✔ | |||||
Schinus molle | Peruvian peppertree | Limited | ✔ | |||||
Schinus terebinthifolia | Brazilian pepper tree | Moderate | ◆ | ✔ | ||||
Schismus arabicus | Mediterranean grass | Limited | ||||||
Schismus barbatus | common Mediterranean grass | Limited | ||||||
Scolymus hispanicus | goldenthistle | Watch | -* | |||||
Senecio elegans | redpurple ragwort | Watch | ✔ | |||||
Senecio glomeratus | cutleaf burnweed | Moderate | ||||||
Senecio jacobaea | tansy ragwort | Limited | -* | |||||
Senecio linearifolius | fireweed groundsel | Watch | -* | |||||
Sesbania punicea | scarlet Wisteria | High | -* | ✔ | ||||
Silybum marianum | milk thistle | Limited | ✔ | |||||
Sinapis arvensis | wild mustard | Limited | ||||||
Sisymbrium irio | London rocket | Limited | ||||||
Solanum aviculare | New Zealand nightshade | Watch | ✔ | |||||
Solanum carolinense | Carolina horsenettle | Watch | -* | |||||
Spartina alterniflora x S. foliosa | smooth hybrid cordgrass | High | -* | |||||
Spartina anglica | English cordgrass | Moderate | ◆ | -* | ||||
Spartina densiflora | dense-flowered cordgrass | High | -* | |||||
Spartina patens | salt marsh hay | Limited | -* | |||||
Spartium junceum | Spanish broom | High | -* | ✔ | ||||
Sphaerophysa salsula | alkali swainsonpea | Watch | -* | |||||
Stipa brachychaeta | punagrass | Watch | -* | |||||
Stipa capensis | Cape ricegrass | Moderate | ◆ | |||||
Stipa manicata | Andean tussockgrass | Limited | ||||||
Stipa miliacea var. miliacea | smilo grass | Limited | ||||||
Stipa tenuissima | Mexican feathergrass | Watch | ✔ | |||||
Tamarix aphylla | athel | Limited | B | ✔ | ||||
Tamarix chinensis | Chinese tamarisk | High | -* | |||||
Tamarix gallica | French tamarisk | High | -* | |||||
Tamarix parviflora | smallflower tamarisk | High | -* | ✔ | ||||
Tamarix ramosissima | saltcedar | High | -* | ✔ | ||||
Tanacetum vulgare | common tansy | Moderate | ✔ | |||||
Tetragonia tetragonioides | New Zealand spinach | Limited | ||||||
Thinopyrum junceiforme | Russian wheatgrass | Watch | ||||||
Torilis arvensis | hedgeparsley | Moderate | ||||||
Triadica sebifera | Chinese tallow tree | Moderate | ◆ | ✔ | ||||
Tribulus terrestris | puncture vine | Limited | -* | |||||
Trifolium hirtum | rose clover | Limited | ||||||
Ulex europaeus | gorse | High | -* | |||||
Undaria pinnatifida | wakame | Limited | ||||||
Ventenata dubia | North Africa grass | Watch | ||||||
Verbascum thapsus | woolly mullein | Limited | ✔ | |||||
Verbena bonariensis | tall vervain | Watch | ✔ | |||||
Vinca major | periwinkle | Moderate | ✔ | |||||
Volutaria tubuliflora | desert knapweed | Limited | ◆ | A* | ||||
Washingtonia robusta | Mexican fan palm | Moderate | ◆ | ✔ | ||||
Watsonia meriana | bulbil Watsonia | Limited | ✔ | |||||
Zantedeschia aethiopica | calla lily | Limited | ✔ | |||||
Zostera japonica | dwarf eelgrass | Moderate | ◆ | -* | ||||
Zygophyllum fabago | Syrian beancaper | Watch | -* |