Distribution: Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east across most of North America to the Atlantic Coast.
Habitat: Moist places, especially in meadows and along streams.
Flowers: May-July
Origin: Native
Growth Duration: Annual, Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies
Glabrous, acaulescent perennial with shallow, fleshy, spreading rhizomes.
Leaf blades deeply ovate-cordate to cordate-triangular, up to 7 cm. in width, with rounded teeth; petioles 5-25 cm. long; stipules linear-lanceolate, entire.
Flowers solitary, 10-20 mm. long, on peduncles usually exceeding the leaves; spur short, saccate; petals 5, bluish-violet, the lower 3 whitish at the base, prominently bearded, the upper pair sometimes not bearded; style glabrous.
Capsule, 3-valved.
Publication: Pittonia 3(15D): 144-145. 1896.
Viola nephrophylla Greene var. nephrophylla [HC]
Viola sororia Willd. ssp. affinis (Leconte) R.J. Little [JPM]
Viola sororia Willd. var. affinis (Leconte) L.E. McKinney
PNW Herbaria: Specimen records of Viola nephrophylla in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Viola nephrophylla checklist entry
OregonFlora: Viola nephrophylla information
E-Flora BC: Viola nephrophylla atlas page
CalPhotos: Viola nephrophylla photos
