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

Arabidopsis lyrata subsp. kamchatica (Linnaeus) O’Kane & Al-Shehbaz
Kamchatica rockcress
Brassicaceae (Mustard family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #7377)

E-Flora BC Static Map
Distribution of Arabidopsis lyrata subsp. kamchatica
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Species Information

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General:
Short-lived perennial herb from a simple or branched stem-base; stems 1-several, simple or branched, 10-30 cm tall, glabrous or sparsely short-hairy basally.
Leaves:
Mostly in a basal rosette, broadly egg-shaped, 1.5-6 cm long, 5-17 mm wide, at least some leaves pinnately cleft, others entire or toothed; stem leaves 3-7, oblanceolate, 1-4 cm long, narrowed to a short stalk or unstalked but not ear-like at the bases, entire or toothed.
Flowers:
Racemes few-flowered (3 to 20); petals 5-5.5 mm long, white; sepals glabrous, outer two slightly bulged at base.
Fruits:
Siliques, glabrous, erect, but not appressed to the axis of the inflorescence, 2-4 cm long, 1-1.5 mm wide, slightly compressed; seeds 1-1.5 mm long, wingless.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to moist gravel bars, moraines, scree slopes, talus slopes and disturbed areas in the montane to alpine zones; frequent throughout BC; N to AK, E to SK and S to WA; E Asia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Arabidopsis lyrata ssp. kamchatica

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) 1542 1542 1542
Slope Gradient (%) 29 29 29
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
50 49 50
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 4 4
Modal Nutrient Regime
Class
B
Number of field plots
 species was recorded in:
1
Modal BEC Zone Class
ESSF
All BEC Zones (# of stations/zone) species was recorded in: ESSF(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.

Synonyms and Alternate Names

Arabis kamchatica (Fisch. ex DC.) Ledeb.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References