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

Arabidopsis lyrata L.
lyre-leaved rockcress (Kamchatka rockcress)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #7376)

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Distribution of Arabidopsis lyrata
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Arabidopsis lyrata ssp. kamchatica

Species Information

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Biennial or short-lived perennial from a simple or branched stem-base; stems 1-several, simple or branched, 10-30 cm tall, glabrous throughout or sparsely stiff-hairy near base.
Basal leaves in a distinct rosette, spoon-shaped, 1-4 cm long, 3-5 mm wide, stalks usually not fringed, blades glabrous or sparsely hairy, simple and entire or with a few large teeth or some pinnately cleft; stem leaves few, short-stalked or unstalked, not ear-like at the bases, entire.
Racemes few-flowered (5-15); petals white to pale pink, 6-8 mm long; sepals glabrous, outer two slightly bulging on one side at the base.
Siliques, erect and angled away from the axis of the inflorescence, 2-4 cm long; seeds in 1 row, 0.75-1.0 mm long, wingless.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Gravel slopes and waste places in the lowland zone; rare in C and SW BC; probably introduced from E North America.

Source: The Illustrated Flora of British Columbia

Synonyms and Alternate Names

Arabis lyrata L.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References