Physaria occidentalis subsp. occidentalis |
Brassicaceae tribe Physarieae |
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western bladder pod |
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Habit | Annuals, biennials, perennials, or subshrubs; eglandular. | |
Caudex | a thickened crown, branched. |
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Stems | several from base, exserted to nearly covered with basal leaves (densely clustered), erect or decumbent. |
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Basal leaves | blade margins sinuate-dentate or entire. |
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Cauline leaves | petiolate, sessile, or subsessile; blade base usually not auriculate (except Paysonia), margins entire, dentate, or sinuate. |
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Trichomes | usually short-stalked, subsessile, or sessile, sometimes long-stalked, stellate, scalelike, subdendritic, or forked, sometimes mixed with simple ones. |
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Racemes | ebracteate, often elongated in fruit. |
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Flowers | actinomorphic; sepals erect, spreading, ascending, or reflexed, lateral pair seldom saccate basally; petals white, yellow, lavender, purple, violet, orange, or brown [pink], claw present, often distinct; filaments unappendaged, not winged; pollen (3 or) 4–11-colpate. |
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Fruits | (strongly latiseptate), compressed at margins and apex, apex (acute), often beaked; valves pubescent inside; ovules 4 per ovary; style frequently curved. |
silicles or siliques, dehiscent, unsegmented, terete, latiseptate, or angustiseptate; ovules 2–100 per ovary; style usually distinct; stigma entire or strongly 2-lobed. |
Seeds | biseriate, uniseriate, or aseriate; cotyledons accumbent or incumbent. |
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2n | = 10. |
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Physaria occidentalis subsp. occidentalis |
Brassicaceae tribe Physarieae |
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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 ((2000-) 5900-11200 ft) | |
Distribution |
CA; ID; NV; OR; WA |
North America; Mexico; South America; Asia (ne Russia) |
Discussion | Genera 7, species ca. 130 (7 genera, 105 species in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 7, p. 654. | FNA vol. 7, p. 604. |
Parent taxa | ||
Sibling taxa | ||
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Synonyms | Lesquerella cusickii, Lesquerella occidentalis subsp. cusickii, Lesquerella occidentalis var. cusickii | |
Name authority | unknown | B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1(1,1): 100. (1895) |
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