Draba glabella Pursh var. glabella
smooth draba
Brassicaceae (Mustard family)

Introduction to Vascular Plants

Photograph

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Map

E-Flora BC Static Map

Distribution of Draba glabella var. glabella
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Species Information

General:
Loosely tufted perennial herb from a taproot and a simple or branched stem-base; stems erect, 10-40 cm tall, starlike-hairy, rarely with a few simple hairs below.
Leaves:
Basal leaves oblanceolate, 0.5-4 cm long, 2-10 mm wide, entire or toothed; stem leaves 2-10, egg-shaped to lanceolate, 0.8-3 cm long, 3-12 mm wide, toothed or entire; hairy with stalked starlike hairs, 4- to 5-rayed with the longer 2 rays usually paralleling the leaf axis and again branched; margins hairy-fringed with mostly simple or branched hairs, generally starlike with branches again branched.
Flowers:
Racemes several- to many-flowered, occasionally with solitary flowers in upper leaf axils; flower stalks 2-15 mm long, ascending, straight, sparsely soft-hairy to glabrous; petals white, occasionally cream to yellow, notched at the tips, 3.5-5 mm long; sepals 2-3 mm long, sparsely soft-hairy.
Fruits:
Silicles, 6-15 mm long, 1.5-3 mm wide, lanceolate to oblong, plane or rarely twisted, glabrous or short-hairy; styles less than 0.25 mm long.

SourceThe Illustrated Flora of British Columbia

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.

Ecology

Ecological Framework for Draba glabella var. 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

Avg

Min

Max

Elevation (metres)
1500 1500 1500
Slope Gradient (%)
8 8 8

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

201 202 202
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 5
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
1
Modal BEC Zone Class
SWB

All BEC Zones (# of stations/zone) species was recorded in

SWB(1)

Habitat and Range

Moist to mesic meadows and cliffs in the subalpine and alpine zones; rare in BC north of 51degree N; circumpolar, N to AK, YT and NT and E to NF.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Draba arabisans var. canadensis (Burnet) Fern. & Knowlt.
Draba daurica DC.
Draba glabella var. megasperma (Fern. & Knowlt.) Fern.
Draba glabella var. orthocarpa (Fern. & Knowlt.) Fern.
Draba hirta auct. non L.
Draba megasperma Fern. & Knowlt.