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

Viola glabella Nutt.
stream violet (pioneer violet; yellow wood violet)
Violaceae (Violet family)

Introduction to Vascular Plants

© David Shackleton  Email the photographer   (Photo ID #79635)

E-Flora BC Static Map
Distribution of Viola glabella
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Species Information

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General:
Perennial herb from a scaly, fleshy rhizome, without stolons; ascending to erect, smooth, 5-30 cm tall.
Leaves:
Basal leaves heart-shaped to kidney-shaped, toothed, smooth, the blades 5-9 cm long, 4-8 cm wide, the stalks 2.5-25 cm long, smooth; stem leaves similar, the stalks from shorter than to slightly longer than the blades; stipules egg-shaped, 0.5-1 cm long, entire.
Flowers:
Inflorescence of single, axillary flowers; petals 5, deep yellow, the lower petal 8-14 mm long including the 1- to 2-mm long spur, the lower 3 purplish-pencilled within, the lateral pair bearded; sepals 5, lanceolate; style heads densely bearded.
Fruits:
Capsules, smooth, 7-17 mm long; seeds brown to black.
Notes:
Hybridizes with V. biflora ssp. carlottae on the Queen Charlotte Islands.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to moist streambanks, woodlands and forests in the lowland to alpine zones; frequent in BC south of 56degreeN; N to S AK, E to AB and S to MT, ID and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Viola glabella

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 0 1011 2750
Slope Gradient (%) 0 18 220
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 222 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 4 8
Modal Nutrient Regime
Class
D
Number of field plots
 species was recorded in:
2497
Modal BEC Zone Class
ESSF
All BEC Zones (# of stations/zone) species was recorded in: AT(9), BAFA(1), BWBS(12), CDF(1), CMA(1), CWH(625), ESSF(747), ICH(518), IDF(77), IMA(1), MH(70), MS(102), PP(2), SBPS(2), SBS(198), SWB(1)

Ecological Indicator Information

A shade-tolerant to very shade-intolerant, submontane to subalpine, Western North American herb distributed equally in the Pacific and Cordilleran regions. Occurs on very moist to wet, nitrogen-rich soils (Moder and Mull humus forms) within boreal, temperate, and cool mesothermal climates; its occurrence increases with increasing latitude and precipitation. Common in non-forested communities and open-canopy forests on water-receiving (flood-plains and stream-edge) sites. Usually associated with Athyrium filix-femina, Cornus sericea, Lysichitum americanum, Rubus spectabilis, and Tiarella trifoliata. A nitrophytic species characteristic of flooded sites.

SourceIndicator Plants of Coastal British Columbia (Information applies to coastal locations only)

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.

Taxonomic and Nomenclatural Links

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General References