Viola orbiculata Geyer ex Holz.
round-leaved violet (darkwoods violet; evergreen yellow violet)
Violaceae (Violet family)
Introduction to Vascular Plants
round-leaved violet (darkwoods violet; evergreen yellow violet)
Violaceae (Violet family)
Introduction to Vascular Plants
Species Information
General:
Perennial from a scaly rhizome, without stolons; stems erect, smooth, 3-5 cm tall.
Leaves:
Basal leaves evergreen (or at least some of them), round, bases deeply heart-shaped, toothed, smooth, the blades 1.5-4 cm long, 2-4 cm wide, the stalks up to 5 cm long; stem leaves similar, reduced; stipules lanceolate, entire.
Flowers:
Inflorescence of single, axillary flowers; petals 5, yellow, the lower petal 0.5-1.5 cm long including the 1- to 2-mm long spur, the lower 3 purplish-pencilled, the lateral pair yellow-bearded; sepals 5, lanceolate; style heads short-bearded.
Fruits:
Capsules, smooth; seeds brown.
Illustration
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Viola orbiculata
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)
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 |
||
|
Avg |
Min |
Max |
|
| Elevation
(metres) |
1306 | 5 | 2500 |
| Slope
Gradient (%) |
26 | 0 | 235 |
|
Aspect (degrees) |
199 | 0 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 0 | 8 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
3688 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(14), BWBS(21), CDF(1), CMA(3), CWH(249), ESSF(1392), ICH(1126), IDF(72), MH(20), MS(337), SBPS(11), SBS(248) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Mesic to moist meadows and forests the montane to alpine zones; frequent in BC south of 56degreeN, absent in the Queen Charlotte Islands; E to AB, and S to WY, ID and OR.Status Information
Synonyms
Synonyms and Alternate Names:
Viola sempervirens var. orbiculata (Geyer ex Holz.) J.K. Henry
Viola sempervirens var. orbiculoides M.S. Baker