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FNA | Family List | FNA Vol. 7 | Brassicaceae | Physaria

60a. Physaria occidentalis (S. Watson) O’Kane & Al-Shehbaz subsp. occidentalis

Lesquerella cusickii M. E. Jones; L. occidentalis subsp. cusickii (M. E. Jones) Maguire & A. H. Holmgren; L. occidentalis var. cusickii (M. E. Jones) C. L. Hitchcock

Caudex a thickened crown, branched. Stems several from base, exserted to nearly covered with basal leaves (densely clustered), erect or decumbent. Basal leaves: blade margins sinuate-dentate or entire. Fruits (strongly latiseptate), compressed at margins and apex, apex (acute), often beaked; valves pubescent inside; ovules 4 per ovary; style frequently curved. 2n = 10.

Flowering (Apr-)Jun-Aug. Loose gravelly soils, talus slopes, volcanic rocks, rocky ridges, metamorphic rubble, marbleized rocks, decomposed limestone and schist, barren hillsides, whitish ash deposits; (600-) 1800-3400 m; Calif., Idaho, Nev., Oreg., Wash.


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