UW Burke Herbarium species comparison

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Viola howellii

Viola renifolia

Howell's violet

kidney-leaf white violet
Habit Sparsely pubescent perennial from scaly rhizomes, 2-10 cm. tall.
Leaves

Leaf blades cordate to reniform-cordate, with coarse, rounded teeth, the petioles of the many basal leaves 10-15 cm. long;

stipules 3-10 mm. long, prominently toothed.

Flowers

Flowers 1.5-2 cm. long, the spur very prominent, saccate;

sepals obtuse, auriculate at the base;

petals bluish-violet to nearly white, strongly veined with purple, the lateral pair long-bearded;

style sparsely bearded.

Fruits

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

Viola howellii

Viola renifolia
Flowering time April-May June-August
Habitat Moist woods and prairies at low to moderate elevations. Peatlands, riparian zones, swamps, seeps, and damp thickets.
Distribution
Occurring west of the Cascades crest and in the Columbia River Gorge in Washington; southwestern British Columbia to California.
[WildflowerSearch map]
[BONAP county map]
Occurring east of the Cascades crest in the north-central to northeastern counties in Washington; Alaska to northern Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Not of concern
Sibling taxa
V. adunca, V. arvensis, V. canadensis, V. flettii, V. glabella, 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. trinervata, V. ×wittrockiana
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. riviniana, V. selkirkii, V. sempervirens, V. sheltonii, V. sororia, V. tricolor, V. trinervata, V. ×wittrockiana
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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