UW Burke Herbarium species comparison

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Viola rostrata

Viola palustris

marsh violet
Habit Glabrous perennial from slender, widespread rhizomes, with creeping stolons, the petioles and peduncles rising from the rhizomes.
Leaves

Leaf blades cordate to reniform, 2.5-3.5 cm. broad, with coarse, rounded teeth;

petioles up to 15 cm. long;

stipules chaffy, lanceolate, entire.
Flowers

Flowers 10-13 mm. long, the peduncle about the same length as the leaves;

petals white to lilac, the lower 3 purple-penciled, the lateral pair sparsely bearded;

style head glabrous, lobed.
Fruits

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

Viola rostrata

Viola palustris
Flowering time May - July
Habitat Moist meadows and streambanks, low to mid-elevations in the mountains
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains, northern Great Plains, northeastern North America, and Eurasia.
[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. 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. 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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