E-Flora BC: Electronic Atlas of the Flora of British Columbia

Viola adunca Sm. var. adunca
early blue violet (hookedspur violet)
Violaceae (Violet family)

Introduction to Vascular Plants

© Gordon Neish  Email the photographer   (Photo ID #16337)

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Distribution of Viola adunca var. adunca
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Species Information

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General:
Perennial herb from a rhizome, without stolons; stems lacking in spring but developing aerial stems as the season progresses, ascending, usually hairy, 2-10 cm tall.
Leaves:
Basal leaves egg-shaped to heart-shaped, the margins blunt-toothed, the blades 0.5-4 cm long, smooth or hairy, the stalks 5-7 cm long; stem leaves similar, sometimes few; stipules jagged or sharp-toothed (at least basally), reddish-brown or greenish, often with reddish-brown flecks, 3-10 mm long.
Flowers:
Inflorescence of single, axillary flowers; petals 5, blue to deep violet, lower petal 8-16 mm long including the 4- to 8-mm long spur, the spur not pouched, lowest 3 petals often whitish with purple markings, lateral pair white-bearded; sepals 5, lanceolate, 1/3 to 1/2 as long as the petals; style heads bearded with short to long hairs.
Fruits:
Capsules, smooth, 6-11 mm long; seeds dark brown.
Notes:
A highly variable species in which a number of morphological phases have received dubious taxonomic recognition. A compact, dwarf form, smooth, with dark blue flowers, that occurs sporadically at high elevations has been described as var. bellidifolia (Greene) Harrington.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to moist open woods, meadows, and roadsides; common throughout BC in all vegetation zones; N to S AK, YT and NT, E to PQ and NS and S to ME, NY, MI, MN, IO, SD, NM, UT, NV and CA.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Viola adunca subsp. ashtonae M.S. Baker
Viola adunca subsp. radicosa M.S. Baker
Viola adunca subsp. typica M.S. Baker
Viola adunca subsp. uncinulata (Greene) Applegate
Viola adunca var. bellidifolia (Greene) Harrington
Viola adunca var. cascadensis (M.S. Baker) C.L. Hitchc.
Viola adunca var. uncinulata (Greene) C.L. Hitchc.
Viola aduncoides A. L÷ve & D. L÷ve
Viola bellidifolia Greene
Viola cascadensis M.S. Baker
Viola montanensis Rydb.
Viola subvestita Greene

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References