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Photo is of parent taxon

western bladder pod

Habit Annuals, biennials, perennials, or subshrubs; eglandular.
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.

Cauline leaves

petiolate, sessile, or subsessile;

blade base usually not auriculate (except Paysonia), margins entire, dentate, or sinuate.

Trichomes

usually short-stalked, subsessile, or sessile, sometimes long-stalked, stellate, scalelike, subdendritic, or forked, sometimes mixed with simple ones.

Racemes

ebracteate, often elongated in fruit.

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.

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.

2n

= 10.

Physaria occidentalis subsp. occidentalis

Brassicaceae tribe Physarieae

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
from FNA
CA; ID; NV; OR; WA
[BONAP county map]
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.)

Source FNA vol. 7, p. 654. FNA vol. 7, p. 604.
Parent taxa Brassicaceae > tribe Physarieae > Physaria > Physaria occidentalis Brassicaceae
Sibling taxa
P. occidentalis subsp. cinerascens
Subordinate taxa
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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