Physaria occidentalis subsp. occidentalis

Synonyms: Lesquerella cusickii M. E. Jones Lesquerella occidentalis subsp. cusickii Lesquerella occidentalis var. cusickii (M. E. Jones) C. L. Hitchcock
Treatment appears in FNA Volume 7. Treatment on page 654.

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.


Phenology: Flowering (Apr-)Jun–Aug.
Habitat: Loose gravelly soils, talus slopes, volcanic rocks, rocky ridges, metamorphic rubble, marbleized rocks, decomposed limestone and schist, barren hillsides, whitish ash deposits
Elevation: (600-) 1800-3400 m

Distribution

V7 1105-distribution-map.gif

Calif., Idaho, Nev., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
Steve L. O’Kane Jr. +
(S. Watson) O’Kane & Al-Shehbaz +
Vesicaria occidentalis +
Calif. +, Idaho +, Nev. +, Oreg. +  and Wash. +
(600-) 1800-3400 m +
Loose gravelly soils, talus slopes, volcanic rocks, rocky ridges, metamorphic rubble, marbleized rocks, decomposed limestone and schist, barren hillsides, whitish ash deposits +
Flowering (Apr-)Jun–Aug. +
Lesquerella cusickii +, Lesquerella occidentalis subsp. cusickii +  and Lesquerella occidentalis var. cusickii +
Physaria occidentalis subsp. occidentalis +
Physaria occidentalis +
subspecies +