Sweetbush Bebbia juncea var. aspera Asteraceae
Wild cucumber Marah macrocarpus var. macrocarpus Cucurbitaceae				Narrow-leaved cryptantha Cryptantha angustifolia Boraginaceae

Perennial rock-cress Arabis perennans Brassicaceae

Triple-ribbed milkvetch ^ Astragalus tricarinatus Fabaceae

London rocket * Sisymbrium irio Brassicaceae		Heermann's lotus Acmispon heermannii var. heermannii Fabaceae

Beavertail cactus Opuntia basilaris var. basilaris Cactaceae
		Woolly indian paintbrush Castilleja foliolosa Scrophulariaceae

Narrow-leaved stillingia Stillingia linearifolia Euphorbiaceae

		Engelmann's hedgehog cactus Echinocereus engelmannii Cactaceae		Common phacelia Phacelia distans Hydrophyllaceae Salt cedar * Tamarix ramosissima Tamaricaceae
Silver lotus Acmispon argophyllus var. argophyllus Fabaceae
Jacumba milkvetch Astragalus douglasii var. douglasii Fabaceae

Goldfields Lasthenia gracilis Asteraceae		Bigelow's spike-moss Selaginella bigelovii Selaginellaceae

		California bur-clover * Medicago polymorpha Fabaceae		Bird's-foot fern Pellaea mucronata var. mucronata Pteridaceae
Silver cholla Cylindropuntia echinocarpa Cactaceae

INDEX

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