Small Wirelettuce
Stephanomeria exigua ssp. exigua
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Whiteplume Wirelettuce
Stephanomeria exigua ssp. macrocarpa
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Lettuce Wirelettuce
Stephanomeria lactucina
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Tufted Wirelettuce
Stephanomeria paniculata
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Parry's Rock Pink
Stephanomeria parryi
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Parish's Wire Lettuce
Stephanomeria pauciflora
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Narrow-leaved Wire-lettuce
Stephanomeria tenuifolia
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Rod Wirelettuce
Stephanomeria virgata
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Wand Wirelettuce
Stephanomeria virgata ssp. pleurocarpa
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Rod Wirelettuce
Stephanomeria virgata ssp. virgata
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Queen's-root
Stillingia linearifolia
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Mojave Toothleaf
Stillingia paucidentata
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Annual Toothleaf
Stillingia spinulosa
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Mormon Needle Grass
Stipa arida
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Nodding Needle Grass
Stipa cernua
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Needlegrass
Stipa comata
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Needle & Thread Grass
Stipa comata var. comata
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Stipa comata var. intermedia
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Giant Stipa
Stipa coronata
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San Diego County Needle Grass
Stipa diegoensis
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Small-flowered Rice Grass
Stipa divaricata
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Little Rice Grass
Stipa exigua
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Indian Ricegrass
Stipa hymenoides
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King's Rice Grass
Stipa kingii
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Wide-glumed Needle Grass
Stipa latiglumis
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Lemmon's Needlegrass
Stipa lemmonii
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Stipa lemmonii var. lemmonii
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Pubescent Lemmon's Needlegrass
Stipa lemmonii var. pubescens
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Foothill Needlegrass
Stipa lepida
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Letterman's Needlegrass
Stipa lettermanii
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Columbia Needlegrass
Stipa nelsonii
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Dore's Needlegrass
Stipa nelsonii var. dorei
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Nevada Needle Grass
Stipa nevadensis
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Western Needlegrass
Stipa occidentalis
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California Needle Grass
Stipa occidentalis var. californica
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Western Needlegrass
Stipa occidentalis var. occidentalis
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Common Western Needle Grass
Stipa occidentalis var. pubescens
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Stipa parishii
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Parish Achnatherum
Stipa parishii var. parishii
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Pinewoods Needle Grass
Stipa pinetorum
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Purple Needlegrass
Stipa pulchra
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Desert Stipa
Stipa speciosa
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Stillman's Stipa
Stipa stillmanii
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Thurber's Needlegrass
Stipa thurberiana
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Webber's Needle Grass
Stipa webberi
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Longbeak Streptanthella
Streptanthella longirostris
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Pacific Jewelflower
Streptanthus barbatus
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Bearded Jewelflower
Streptanthus barbiger
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Tamalpais Jewelflower
Streptanthus batrachopus
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Laguna Mountains Jewelflower
Streptanthus bernardinus
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Socrates Mine Jewelflower
Streptanthus brachiatus
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Brewer's Jewelflower
Streptanthus breweri
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Mount Hamilton Jewelflower
Streptanthus callistus
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Southern Jewelflower
Streptanthus campestris
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Heartleaf Twistflower
Streptanthus cordatus
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Heartleaf Twistflower
Streptanthus cordatus var. cordatus
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Piute Mountains Jewelflower
Streptanthus cordatus var. piutensis
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Varied-leaved Jewelflower
Streptanthus diversifolius
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Sickle-fruit Jewelflower
Streptanthus drepanoides
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Farnsworth's Jewel Flower
Streptanthus farnsworthianus