Phacelia rupestris lives among the rocks at lower elevation. The flowers are white with exerted stamens. It is an annual with pubescent, pinnatifid leaves.

Martin and Hutchins 1980, Kearney and Peebles 1969

Duration: Annual Nativity: Native Lifeform: Forb/Herb General: Annual with stems usually erect or ascending, but often decumbent and weak stemmed, 20-50 cm tall with grayish-pubescent herbage. Leaves: Mostly coarsely pinnatifid with 3-7 broad lobes or divisions, each lobe coarsely toothed, leaves 6-14 cm long. Flowers: Spreading scorpioid cymes, sepals linear to oblanceolate, about 3 mm long, campanulate corolla, white, with exserted stamens, 4-5 mm long, lobes entire or nearly so. Fruits: Ovoid pods, with 4 seeds. Ecology: Found in canyons or on open ground, often in rocky soils from 3,500-6,500 ft (1067-1981 m); flowers April-June. Notes: This species is very similar to P. congesta, but can be told apart by the white corolla, where P. congesta has whitish to blue corollas. Ethnobotany: Unknown, but other species in the genera have uses. Etymology: Phacelia from Greek phacelo- for bundle, while rupestris means growing among rocks. Synonyms: Phacelia congesta var. rupestris Editor: SBuckley, 2010