Conringia orientalis (L.) Dumort.
hare's-ear mustard
Brassicaceae (Mustard family)

Introduction to Vascular Plants


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E-Flora BC Static Map

Distribution of Conringia orientalis
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Species Information

Annual herb from a taproot; stems 30-70 cm tall, mostly simple, glabrous and glaucous.
Basal leaves 5-9 cm long, oblanceolate to egg-shaped, narrowed to base, more or less entire; stem leaves oblong-lanceolate, unstalked and heart-shaped, clasping at the bases.
Racemes few-flowered, flat-topped; flower stalks ascending, 10-15 mm long; petals cream to lemon, with a slender stalklike base and a narrowly egg-shaped blade, 7-12 mm long; sepals sharp-pointed, erect, 6-8 mm long.
Siliques, 8-13 cm long, 1.5-2 mm thick, slightly constricted between the seeds, tapered to a slender tip; thick styles about 1 mm long.

SourceThe Illustrated Flora of British Columbia


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.


Ecological Framework for Conringia orientalis

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




Elevation (metres)
Slope Gradient (%)

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

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

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

Habitat and Range

Mesic to dry roadsides, fields and waste places in the steppe and montane zones; rare in SW and SC BC; introduced from Eurasia.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Brassica orientalis L.