UW Burke Herbarium species comparison

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Viola nephrophylla

Viola adunca

LeConte violet, northern bog violet

early blue violet, wild dog violet
Habit Glabrous, acaulescent perennial with shallow, fleshy, spreading rhizomes. Glabrous to densely puberulent perennial from slender rhizomes, from stemless to 10 cm. tall.
Leaves

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.

Leaves short- to long-petiolate, the blade cordate-ovate to lance-ovate, with fine, rounded teeth, 1-3 cm. long;

stipules liner-lanceolate, 3-10 mm. long, entire to remotely slender-toothed.
Flowers

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.

Flowers 5-15 mm. long, the spur on the lowest petal slender, over half the length of the petal;

petals blue to deep violet, the lower three with a whitish base penciled in violet, the lateral pair white-bearded;

style head bearded with thick hairs. Some flowers also cleistogamous (do not open up but do self-pollinate and produce seed).
Fruits

Capsule, 3-valved.

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

Viola nephrophylla

Viola adunca
Flowering time May-July April-August
Habitat Moist places, especially in meadows and along streams. Dry to moist meadows and open woods, from the lowlands to subalpine areas.
Distribution
Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east across most of North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
[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. howellii, V. lanceolata, V. langsdorffii, V. macloskeyi, 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. 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. trinervata, V. ×wittrockiana
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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