Burke: Viola nephrophylla vs. Viola sororia

	Viola nephrophylla	Viola sororia
	LeConte violet, northern bog violet	northern blue violet, northern woodland violet
Habit	Glabrous, acaulescent perennial with shallow, fleshy, spreading rhizomes.
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.
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.
Fruits	Capsule, 3-valved.

	Viola nephrophylla	Viola sororia
Flowering time	May-July	May-July
Habitat	Moist places, especially in meadows and along streams.	Dry to moist forest openings, thickets, meadows, and stream banks at middle elevations.
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]	Occurring east of the Cascades crest in northeastern Washington; Yukon Territory to California, 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	Review Group 1 in Washington (WANHP)
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. 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. tricolor, V. trinervata, V. ×wittrockiana
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, OR, WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Viola nephrophylla

Viola sororia

LeConte violet, northern bog violet

northern blue violet, northern woodland violet

Habit

Glabrous, acaulescent perennial with shallow, fleshy, spreading rhizomes.

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.

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.

Fruits

Capsule, 3-valved.

Viola nephrophylla

Viola sororia

Flowering time

May-July

Habitat

Moist places, especially in meadows and along streams.

Dry to moist forest openings, thickets, meadows, and stream banks at middle elevations.

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]

Occurring east of the Cascades crest in northeastern Washington; Yukon Territory to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Review Group 1 in Washington (WANHP)

Sibling taxa