UW Burke Herbarium species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Viola howellii

Viola odorata

Howell's violet

sweet blue violet
Habit Sparsely pubescent perennial from scaly rhizomes, 2-10 cm. tall. Low, fragrant, creeping, soft-hairy perennial with stolons that root at the nodes.
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.

Leaves tufted, cordate and rounded, petiolate, enlarging in summer.
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.

Flowers blue-violet or white, rarely lilac, pink or yellow;

sepals blunt.
Fruits

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

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

Viola howellii

Viola odorata
Flowering time April-May March-September
Habitat Moist woods and prairies at low to moderate elevations. Sheltered, disturbed areas in somewhat moist soil.
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 on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho; also in eastern North America.
[WildflowerSearch map]
[BONAP county map]
Origin Native Introduced from Europe
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. 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
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in UW Burke Herbarium yet, or it's listed under a synonym.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers