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Family = Brassicaceae, Genus = Arabis, Species = lyallii, including synonyms,

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Boechera lyallii   (Lyall's rockcress)  
(= Arabis lyallii in Flora of the Pacific Northwest)
Tufted perennial from a well-branched crown, the several stems erect, 1-2.5 dm. tall, glabrous throughout or pubescent at the base.
Distribution: Widely distributed in the mountains throughout Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Subalpine to alpine ridges, cliffs, and drier meadows.
Origin: Native



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Washington Native Plant Society
WA Native Plant Society