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

Erysimum pallasii (Pursh) Fernald
Pallas' wallflower
Brassicaceae (Mustard family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #87460)

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Distribution of Erysimum pallasii
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Species Information

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General:
Perennial or biennial herb from taproot and branched or unbranched stem-base; stems simple, 3-35 cm tall, hairy.
Leaves:
Basal leaves in a rosette, linear-lanceolate, 5-7 cm long, blades entire or shallowly toothed, 1-6 cm long, 2-4 mm wide; stalks narrow.
Flowers:
Inflorescence racemose, flowers numerous, often with 1 to few bracts, each subtending one of the lower flowers, very short when flowering, greatly elongating in fruit; flower stalks 5-28 mm long, ascending to erect; petals pink to pink-purple, 10-16 mm long, 2-3 mm wide, claw about 5-8 mm long; sepals papery-margined, purplish, 5-8 mm long.
Fruits:
Siliques, stiffly erect, dark purple, 3-10 cm long, 1.5-2 mm wide, somewhat curved, distinctly compressed parallel to the septum; beaks (1) 1.5-3 mm long; seeds 2 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry talus slopes in the alpine zone; rare in NW BC, known only from Mt. Edziza; circumpolar, N to AK, YT and NT, Eurasia.

Source: The Illustrated Flora of British Columbia

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