Page author: David Giblin
Viola trinervata
3-nerved violet, Rainier violet, sagebrush violet
WTU specimens
Other herbaria

Distribution: Okanogan County, Washington, to Malheur County, Oregon.

Habitat: Sagebrush flats and rocky hillsides, often on lithosol, where vernally moist.

Flowers: March - June

Origin: Native

Conservation Status: Not of concern

Description:
General:

Glabrous, somewhat glaucous perennial from short, thick, very deep-seated rhizomes, the stems several, naked below, 5-15 cm. tall.

Leaves:

Leaf blades palmately lobed or compound, the main segments once or twice dissected, the ultimate segments narrowly elliptic, 1.5-4 cm. long; leaves leathery, prominently 3-nerved on the lower surface; petioles longer than the blades.

Flowers:

Peduncles exceeding the leaves; flowers about 1.5 cm. long, usually bicolored, the upper pair deep reddish-violet, the lower 3 pale to deep lilac, with yellowish or whitish base and purple penciling, occasionally all white or all deep purple; style head hairy.

Fruits:

Fruit a 3-valved capsule, ovary superior, placentation parietal.

Accepted Name:
Viola trinervata (Howell) Howell ex A. Gray
Publication: Bot. Gaz. 11(11): 290. 1886.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Viola trinervata in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Viola trinervata checklist entry.

E-Flora BC: Viola trinervata atlas page.

CalPhotos: Viola trinervata photos.

USDA Plants: Viola trinervata information.

55 photographs:
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