Burke: Viola trinervata

	Viola trinervata
	desert pansy, 3-nerved violet, sagebrush violet
Habit	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.

	Viola trinervata
Flowering time	March-June
Habitat	Sagebrush flats and rocky hillsides, often on lithosol, where vernally moist.
Distribution	Occurring east of the Cascades crest in Washington; north-central Washington to southeastern Oregon. [WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Not of concern
Sibling taxa	V. adunca, V. arvensis, V. canadensis, V. flettii, V. glabella, V. howellii, V. lanceolata, V. langsdorffii, V. macloskeyi, V. nephrophylla, V. nuttallii, V. odorata, V. orbiculata, V. palustris, V. pluviae, V. purpurea, V. renifolia, V. riviniana, V. selkirkii, V. sempervirens, V. sheltonii, V. sororia, V. tricolor, V. ×wittrockiana
Web links	Local floras: OR, WA Local Web sites: Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Viola trinervata

desert pansy, 3-nerved violet, sagebrush violet

Habit

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.