Oak-leaved Goosefoot

Chenopodium glaucum

Chenopodium glaucum var. salinum

Hians Goosefoot

Chenopodium hians

Narrowleaf Goosefoot

Chenopodium leptophyllum

Desert Goosefoot

Chenopodium pratericola

Red Goosefoot

Chenopodium rubrum

Chenopodium rubrum var. humile

Indian Thistle

Cirsium brevistylum

Peregrine Thistle

Cirsium cymosum

Peregrine Thistle

Cirsium cymosum var. cymosum

Douglas' Thistle

Cirsium douglasii

Douglas' Thistle

Cirsium douglasii var. douglasii

Fountain Thistle

Cirsium fontinale

Mount Hamilton Fountain Thistle

Cirsium fontinale var. campylon

Crystal Springs Fountain Thistle

Cirsium fontinale var. fontinale

San Luis Obispo Fountain Thistle

Cirsium fontinale var. obispoense

Cobweb Thistle

Cirsium occidentale

California Thistle

Cirsium occidentale var. californicum

Snowy Thistle

Cirsium occidentale var. candidissimum

Coulter's Thistle

Cirsium occidentale var. coulteri

Cuesta Ridge Thistle

Cirsium occidentale var. lucianum

Cobwebby Thistle

Cirsium occidentale var. occidentale

Venus Thistle

Cirsium occidentale var. venustum

Brownie Thistle

Cirsium quercetorum

Meadow Thistle

Cirsium scariosum

Dinnerplate Thistle

Cirsium scariosum var. americanum

Southern Meadow Thistle

Cirsium scariosum var. citrinum

Rosette Thistle

Cirsium scariosum var. congdonii

Wavyleaf Thistle

Cirsium undulatum

California Saltbush

Extriplex californica

Beach Strawberry

Fragaria chiloensis

Woodland Strawberry

Fragaria vesca

Sunflower

Helianthus annuus

Serpentine Sunflower

Helianthus bolanderi

California Sunflower

Helianthus californicus

Slender Sunflower

Helianthus gracilentus

Showy Sunflower

Helianthus niveus

Nuttall's Sunflower

Helianthus nuttallii

Los Angeles Sunflower

Helianthus nuttallii ssp. parishii

Prairie Sunflower

Helianthus petiolaris

Swamp Knotweed

Persicaria amphibia

Water Pepper

Persicaria hydropiperoides

Water Smartweed

Persicaria punctata

Bidwell's Knotweed

Polygonum bidwelliae

California Knotweed

Polygonum californicum

Douglas' Knotweed

Polygonum douglasii

Scotts Valley Polygonum

Polygonum hickmanii

Marin Knotweed

Polygonum marinense

Parry's

Polygonum parryi

Milkwort Knotweed

Polygonum polygaloides

Fruitleaf Knotweed

Polygonum polygaloides ssp. confertiflorum

Bushy Knotweed

Polygonum ramosissimum

Bushy Knotweed

Polygonum ramosissimum ssp. ramosissimum

Polygonum sawatchense

Polygonum sawatchense ssp. sawatchense

Sierran Dwarf Rose

Rosa bridgesii

California Wildrose

Rosa californica

Wood Rose

Rosa gymnocarpa

Dwarf Rose

Rosa gymnocarpa var. gymnocarpa

Small Leaved Rose

Rosa minutifolia