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

Braya humilis (C.A. Mey.) B.L. Rob.
dwarf braya (low braya)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #16602)

E-Flora BC Static Map
Distribution of Braya humilis
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Species Information

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General:
Perennial or biennial from a taproot or stem-base; stems several, 5-30 cm long, erect or spreading, simple or branched, more or less hairy with forked hairs, purplish.
Leaves:
Basal leaves thick, linear-oblanceolate, 1-4 cm long, entire to somewhat toothed or wavy-margined, glabrous or somewhat hairy; stem leaves reduced, unstalked, lanceolate or linear, clasping at the bases.
Flowers:
Racemes somewhat headlike in flower, greatly elongated in fruit; flower stalks erect or closely ascending, 2-6 mm long, hairy; petals white or purplish, 3-4 mm long; sepals 1.5-2.5 mm long, hairy, deciduous;
Fruits:
Siliques, erect or closely ascending, 1-3 cm long, narrowly cylindric, about 1 mm wide, minutely hairy, somewhat constricted between the seeds; styles slender, 0.5-1 mm long; seeds in 1 row, 0.7-1 mm long.
Notes:
An adequate monograph of North American Braya (especially those of the far north) has yet to be done, thus our taxonomy of these species is often confusing.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to dry forests, river bars, scree slopes and gravelly slopes in the montane to alpine zones; infrequent in N BC, rare southward in the Rocky Mountains; N to AK, YT and NT, E to NF and disjunct in CO.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Braya humilis

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) 1250 1640 2030
Slope Gradient (%) 28 48 68
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
45 337 270
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 2 3
Modal Nutrient Regime
Class
Number of field plots
 species was recorded in:
2
Modal BEC Zone Class
MS
All BEC Zones (# of stations/zone) species was recorded in: MS(1)

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

Additional Photo Sources

General References