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Western Water Hemlock

Cicuta douglasii

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Peregrine Thistle

Cirsium cymosum

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Desert Thistle

Cirsium neomexicanum

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California Thistle

Cirsium occidentale var. californicum

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Snowy Thistle

Cirsium occidentale var. candidissimum

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Meadow Thistle

Cirsium scariosum

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Chaparral Clarkia

Clarkia affinis

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Farewell To Spring

Clarkia amoena

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Glandular Fairyfan

Clarkia arcuata

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Two Lobed Clarkia

Clarkia biloba

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Punch Bowl Godetia

Clarkia bottae

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Fairy Fans

Clarkia breweri

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Red Ribbons

Clarkia concinna

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Red Ribbons

Clarkia concinna ssp. concinna

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Speckled Clarkia

Clarkia cylindrica

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Speckled Clarkia

Clarkia cylindrica ssp. cylindrica

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Dudley's Clarkia

Clarkia dudleyana

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Canyon Clarkia

Clarkia epilobioides

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Farewell To Spring

Clarkia gracilis

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Whitestem Clarkia

Clarkia gracilis ssp. albicaulis

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Mountain Clarkia

Clarkia heterandra

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Lewis' Clarkia

Clarkia lewisii

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Waltham Creek Clarkia

Clarkia modesta

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Purple Clarkia

Clarkia purpurea

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Diamond Clarkia

Clarkia rhomboidea

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Ramona Clarkia

Clarkia similis

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Red Spotted Clarkia

Clarkia speciosa

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Pismo Clarkia

Clarkia speciosa ssp. immaculata

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Redspot Clarkia

Clarkia speciosa ssp. nitens

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Elegant Clarkia

Clarkia unguiculata

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Fort Miller Clarkia

Clarkia williamsonii

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Gunsight Clarkia

Clarkia xantiana

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Gunsight Clarkia

Clarkia xantiana ssp. xantiana

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Serpentine Springbeauty

Claytonia exigua

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Serpentine Springbeauty

Claytonia exigua ssp. exigua

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Gypsum Springbeauty

Claytonia gypsophiloides

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Rooreh

Claytonia perfoliata

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Miner's Lettuce

Claytonia perfoliata ssp. intermontana

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Virgin's Bower

Clematis ligusticifolia

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Slender Stinkweed

Cleomella parviflora

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San Diego Yerba Buena

Clinopodium chandleri

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Blackbrush

Coleogyne ramosissima

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White Blue-eyed Mary

Collinsia bartsiifolia

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Desert Mountain Blue-eyed Mary

Collinsia callosa

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Child's Blue-eyed Mary

Collinsia childii

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Purple Chinese Houses

Collinsia heterophylla

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Purple Chinese Houses

Collinsia heterophylla var. heterophylla

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Spinster's Blue-eyed Mary

Collinsia sparsiflora

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Sticky Chinese Houses

Collinsia tinctoria

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Large Flowered Collomia

Collomia grandiflora

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Variable-leaf Collomia

Collomia heterophylla

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Purple Marsh Cinquefoil

Comarum palustre

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King's Bird's-beak

Cordylanthus kingii

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Heller's Bird's-beak

Cordylanthus kingii ssp. helleri

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Hairy Bird's Beak

Cordylanthus pilosus

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Hansen's Bird's Beak

Cordylanthus pilosus ssp. hansenii

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Hairy Bird's Beak

Cordylanthus pilosus ssp. pilosus

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Hairy Bird's Beak

Cordylanthus pilosus ssp. trifidus

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Pringle's Bird's Beak

Cordylanthus pringlei

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Bushy Bird's Beak

Cordylanthus ramosus