UW Burke Herbarium species comparison

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Viola arvensis

Viola macloskeyi

European field pansy

small white violet
Habit Puberulent, freely-branched annual, 1-3 dm. tall. Perennial from slender rhizomes, with filiform stolons, the leaves and peduncles rising from the rhizomes, the latter 3-6 cm. tall.
Leaves

Leaf blades ovate to lanceolate, coarsely round-toothed, 1-3 cm. long, about equaling the petioles;

stipules very large, laciniate into 5-9 segments, usually with one leaf-like segment nearly as large as the main blade.

Leaf blades ovate-cordate, 1-3 cm. long, with petioles 2-4 cm. long;

stipules lanceolate, membranous, with fine, gland-tipped teeth.
Flowers

Flowers long-pedunculate, solitary in the leaf axils, whitish or light yellow with a tinge of blue, the spur short;

sepals lanceolate, about as long as the petals;

style head copiously short-hairy.

Flowers 5-10 mm. long, the spur fairly prominent;

petals white, the lower 3 with purple penciling, the lateral pair bearded;

style head glabrous.
Fruits

Fruit a 3-valved capsule, ovary superior, placentation parieta

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

Viola arvensis

Viola macloskeyi
Flowering time March-June May-August
Habitat Fields, roadsides, wastelots, and other disturbed areas where escaping from cultivation. Boggy and wet ground from low to mid-elevations in the mountains.
Distribution
Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington;d British Columbia to California, east to the Atlantic Coast..
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from Europe Native
Conservation status Not of concern Not of concern
Sibling taxa
V. adunca, 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. 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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