Viola biflora var. biflora

Treatment appears in FNA Volume 6. Treatment on page 124.

Plants 3–20 cm. Basal leaf blades 0.5–3[–3.5] × 0.9–3.5[–5] cm. Flowers: sepals usually without purple stripe; lowest petal 6–10 mm. Seeds 1.5–2 mm. 2n = 12.


Phenology: Flowering Apr–Jul.
Habitat: Montane and arctic regions, tundra, mesic alpine meadows, scree slopes, grassy places in shade of alders and willows, lake margins, granite outcrops, moist coniferous forests, along streams and falls in wet moss, alluvial soil, sand
Elevation: 40–3900 m

Distribution

V6 202-distribution-map.jpg

B.C., Yukon, Alaska, Colo., c, s Europe, Asia (c, n China, ne India, Indonesia [n Sumatra], Japan, North Korea, Malaysia, Mongolia, Pakistan, Philippines, Russia, Siberia, Taiwan).

Discussion

In North America, var. biflora occurs in Alaska (45–3300 m; PNW Herbaria Portal 2010), Yukon (1200–1500 m), and nine counties in central Colorado (1950–3850 m).

Selected References

None.

Lower Taxa

None.
R. John Little +  and Landon E. McKinney† +
Linnaeus +
B.C. +, Yukon +, Alaska +, Colo. +, c +, s Europe +, Asia (c +, n China +, ne India +, Indonesia [n Sumatra] +, Japan +, North Korea +, Malaysia +, Mongolia +, Pakistan +, Philippines +, Russia +, Siberia +  and Taiwan). +
40–3900 m +
Montane and arctic regions, tundra, mesic alpine meadows, scree slopes, grassy places in shade of alders and willows, lake margins, granite outcrops, moist coniferous forests, along streams and falls in wet moss, alluvial soil, sand +
Flowering Apr–Jul. +
Chrysion biflorum +
Viola biflora var. biflora +
Viola biflora +
variety +