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

24a. Physaria douglasii (S. Watson) O’Kane & Al-Shehbaz subsp. douglasii

Cauline leaves loosely arranged, blade narrowly linear. Fruit valves: trichomes sessile.

Flowering Apr-Jun. Sandy and gravelly soil, stream banks, base of granitic cliffs, sagebrush and grassy slopes, pine woods; 100-1400 m; B.C.; Idaho, Mont., Oreg., Wash.

Subspecies douglasii appears to be restricted mainly to river valleys.


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