Tuberous Sanicle
Sanicula tuberosa
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Greasewood
Sarcobatus vermiculatus
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Hardstem Bulrush
Schoenoplectus acutus
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Tule
Schoenoplectus acutus var. occidentalis
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Olney's Bulrush
Schoenoplectus americanus
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California Bulrush
Schoenoplectus californicus
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Common Threesquare
Schoenoplectus pungens
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Three Square
Schoenoplectus pungens var. longispicatus
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Rocky Mountain Bulrush
Schoenoplectus saximontanus
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Tule
Schoenoplectus tabernaemontani
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Common Tule
Scirpus acutus var. acutus
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Congdon's Bulrush
Scirpus congdonii
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Umbrella Bulrush
Scirpus diffusus
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Panicled Bulrush
Scirpus microcarpus
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Mojave Fishhook Cactus
Sclerocactus polyancistrus
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Black Flowered Figwort
Scrophularia atrata
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Bee Plant
Scrophularia californica
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Desert Figwort
Scrophularia desertorum
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Lanceleaf Figwort
Scrophularia lanceolata
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Santa Catalina Figwort
Scrophularia villosa
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Sierra Skullcap
Scutellaria bolanderi
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Southern Mountains Skullcap
Scutellaria bolanderi ssp. austromontana
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California Skullcap
Scutellaria californica
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Curve Flowered Skullcap
Scutellaria siphocampyloides
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Danny's Skullcap
Scutellaria tuberosa
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Feather River Stonecrop
Sedum albomarginatum
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Cascade Stonecrop
Sedum divergens
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Spearleaf Stonecrop
Sedum lanceolatum
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Rose Flowered Stonecrop
Sedum laxum
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Roseflower Stonecrop
Sedum laxum ssp. flavidum
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Heckner's Stonecrop
Sedum laxum ssp. heckneri
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Rose Flowered Stonecrop
Sedum laxum ssp. laxum
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Davidson's Stonecrop
Sedum niveum
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Oblongleaf Stonecrop
Sedum oblanceolatum
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Sierra Stonecrop
Sedum obtusatum
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Sierra Stonecrop
Sedum obtusatum ssp. boreale
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Sierra Stonecrop
Sedum obtusatum ssp. obtusatum
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Canyon Creek Stonecrop
Sedum obtusatum ssp. paradisum
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Sierra Stonecrop
Sedum obtusatum ssp. retusum
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Oregon Stonecrop
Sedum oreganum
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Cream Stonecrop
Sedum oregonense
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Coast Range Stonecrop
Sedum radiatum
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Yellow Stonecrop
Sedum spathulifolium
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Campbell Lake Stonecrop
Sedum spathulifolium 'Campbell Lake'
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Cape Blanco Common Stonecrop
Sedum spathulifolium 'Cape Blanco'
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Purpureum Common Stonecrop
Sedum spathulifolium 'Purpureum'
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Tomales Bay Common Stonecrop
Sedum spathulifolium 'Tomales Bay'
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Wormleaf Stonecrop
Sedum stenopetalum
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Chaparral Ragwort
Senecio aphanactis
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Rayless Ragwort
Senecio aronicoides
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San Gabriel Ragwort
Senecio astephanus
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Dune Ragwort
Senecio blochmaniae
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California Ragwort
Senecio californicus
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Clark's Ragwort
Senecio clarkianus
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Threadleaf Ragwort
Senecio flaccidus
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Douglas' Groundsel
Senecio flaccidus var. douglasii
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Smooth Threadleaf Ragwort
Senecio flaccidus var. monoensis
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Dwarf Mountain Ragwort
Senecio fremontii
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Dwarf Mountain Ragwort
Senecio fremontii var. fremontii
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Western Dwarf Mountain Ragwort
Senecio fremontii var. occidentalis