Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Great Plains.
Habitat: Sagebrush and juniper flats, grasslands, and open coniferous forest.
Flowers: April-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies
Perennial from short, erect rhizomes, the stems up to 15 cm. long.
Leaf blades glabrous to sparsely hairy, entire, ovate to ovate-lanceolate, truncate or sub-cordate at the base, up to 5 cm. long; petiole 3-10 cm. long; stipules attached to the petiole, the free portion few-toothed.
Flowers with peduncles shorter than the leaves; flowers 8-15 mm. long, yellow, the upper petals brownish-backed, the lower 3 penciled with brownish-purple, the lateral pair bearded; style head bearded, rounded.
Fruit a glabrous, 3-valved capsule, ovary superior, placentation parietal.
Publication: Fl. S.-e. Washington (St. John) 262. 1937.
Viola nuttallii Pursh var. major Hook. [HC]
Viola vallicola A. Nelson var. major (Hook.) Fabijan [IFBC]
Viola vallicola A. Nelson var. vallicola [KZ99]
PNW Herbaria: Specimen records of Viola nuttallii var. vallicola in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Viola nuttallii var. vallicola checklist entry
OregonFlora: Viola nuttallii var. vallicola information
E-Flora BC: Viola nuttallii var. vallicola atlas page
CalPhotos: Viola nuttallii var. vallicola photos
