Suisun Thistle
Cirsium hydrophilum var. hydrophilum
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Mount Tamalpais Thistle
Cirsium hydrophilum var. vaseyi
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Cirsium inamoenum
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Greene's Thistle
Cirsium inamoenum var. inamoenum
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Mojave Thistle
Cirsium mohavense
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Desert Thistle
Cirsium neomexicanum
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Cobweb Thistle
Cirsium occidentale
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California Thistle
Cirsium occidentale var. californicum
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Snowy Thistle
Cirsium occidentale var. candidissimum
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Compact Cobwebby Thistle
Cirsium occidentale var. compactum
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Coulter's Thistle
Cirsium occidentale var. coulteri
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Cuesta Ridge Thistle
Cirsium occidentale var. lucianum
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Cobwebby Thistle
Cirsium occidentale var. occidentale
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Venus Thistle
Cirsium occidentale var. venustum
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Brownie Thistle
Cirsium quercetorum
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Fewleaf Thistle
Cirsium remotifolium
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Pacific Fringed Thistle
Cirsium remotifolium var. odontolepis
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Klamath Thistle
Cirsium remotifolium var. rivulare
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Surf Thistle
Cirsium rhothophilum
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Meadow Thistle
Cirsium scariosum
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Dinnerplate Thistle
Cirsium scariosum var. americanum
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Southern Meadow Thistle
Cirsium scariosum var. citrinum
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Rosette Thistle
Cirsium scariosum var. congdonii
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La Graciosa Thistle
Cirsium scariosum var. loncholepis
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Shasta Valley Thistle
Cirsium scariosum var. robustum
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Elk Thistle
Cirsium scariosum var. scariosum
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Wavyleaf Thistle
Cirsium undulatum
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Seaside Cistanthe
Cistanthe maritima
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California Sawgrass
Cladium californicum
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Chaparral Clarkia
Clarkia affinis
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Farewell To Spring
Clarkia amoena
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Scarlet Farewell-to-Spring
Clarkia amoena 'Scarlet'
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Farewell To Spring
Clarkia amoena ssp. amoena
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Farewell To Spring
Clarkia amoena ssp. huntiana
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Farewell To Spring
Clarkia amoena ssp. whitneyi
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Glandular Fairyfan
Clarkia arcuata
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Small's Southern Clarkia
Clarkia australis
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Two Lobed Clarkia
Clarkia biloba
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Mariposa Clarkia
Clarkia biloba ssp. australis
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Twolobe Clarkia
Clarkia biloba ssp. biloba
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Brandegee's Clarkia
Clarkia biloba ssp. brandegeeae
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Northern Clarkia
Clarkia borealis
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Shasta Clarkia
Clarkia borealis ssp. arida
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Northern Clarkia
Clarkia borealis ssp. borealis
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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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Santa Clara Red Ribbons
Clarkia concinna ssp. automixa
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Red Ribbons
Clarkia concinna ssp. concinna
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Raiche's Red Ribbons
Clarkia concinna ssp. raichei
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Speckled Clarkia
Clarkia cylindrica
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Clarkia cylindrica ssp. clavicarpa
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Speckled Clarkia
Clarkia cylindrica ssp. cylindrica
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Davy's Fairyfan
Clarkia davyi
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Delicate Clarkia
Clarkia delicata
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Dudley's Clarkia
Clarkia dudleyana
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Canyon Clarkia
Clarkia epilobioides
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Slender Clarkia
Clarkia exilis
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Presidio Clarkia
Clarkia franciscana
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Farewell To Spring
Clarkia gracilis