UW Burke Herbarium species comparison

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Viola bakeri

Viola arvensis

European field pansy
Habit Perennial from short, erect rhizomes, the stems up to 15 cm. long. Puberulent, freely-branched annual, 1-3 dm. tall.
Leaves

Leaf blades entire, elliptic-lanceolate, tapering to the petiole, 2-5 cm. long;

petiole 3-12 cm. long;

stipules attached to the petiole, the free portion few-toothed.

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.
Flowers

Flowers with peduncles shorter than the leaves;

flowers 5-12 mm. long, yellow, the lower 3 penciled with brownish-purple, the lateral pair bearded;

style head bearded, rounded.

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.
Fruits

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

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

Viola bakeri

Viola arvensis
Flowering time May-July March-June
Habitat Moist to dry openings in coniferous forests. Fields, roadsides, wastelots, and other disturbed areas where escaping from cultivation.
Distribution
Occurring chiefly east of the Cascades crest in Washington from Mt. Adams south; south-central Washington to California and Nevada.
[WildflowerSearch map]
[BONAP county map]
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]
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. 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. 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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