Arabis eschscholtziana Andrz.
Eschscholtz's rockcress (Eschscholtz's hairy rockcress)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #7374)


Map

E-Flora BC Static Map

Distribution of Arabis eschscholtziana
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Species Information

General:
Biennial or short-lived perennial herb usually from an unbranched stem-base; stems 1-few, 20-80 cm tall, stiff-hairy basally, glabrous above.
Leaves:
Basal leaves oblanceolate, 2-8 cm long, 0.5-2 cm wide, narrowed to a slender, fringed stalk, glabrous to sparsely hairy above and below; stem leaves broadly egg-shaped to oblanceolate, unstalked, with clasping bases and often toothed margins, more or less glabrous.
Flowers:
Few to many-flowered racemes; petals 6-9 mm long, white to pale pink; sepals bulging on one side at the base.
Fruits:
siliques, erect to slightly spreading away from the axis of the inflorescence, straight or slightly curved, 5-8 cm long, 1-2 mm wide, glabrous; seeds in 1 row, 1-2 mm long, wingless or with very narrow wings.
Notes:
Often included in A. hirsuta, as the coastal form of that species.

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.

Habitat and Range

Moist to mesic meadows, streambanks, rocky slopes and disturbed areas in the lowland to alpine zones; frequent in BC in and W of the Coast-Cascade Mountains; N to AK and YT and S to W ID and OR.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Arabis hirsuta subsp. eschscholtziana (Andrz.) Hultén
Arabis hirsuta var. eschscholtziana (Andrz.) Rollins