Page author: David Giblin
Erysimum repandum
spreading wallflower
WTU specimens
Other herbaria

Distribution: East of the Cascades in Washington; distributed throughout much of North America.

Habitat: Wasteland in dry areas, plains and lower mountains.

Flowers: April-June

Origin: Introduced from Eurasia

Conservation Status: Not of concern

Description:
General:

Simple to freely-branched annual, the stem 2-5 dm. tall, somewhat grayish.

Leaves:

Basal leaves several, lanceolate to oblanceolate, up to 15 cm. long and 12 mm. broad, wavy-toothed to wavy-margined; cauline leaves similar, reduced upward, sometimes becoming entire.

Flowers:

Flowers rather showy, in crowded, bractless racemes; pedicles stout, 2-4 mm. long, almost as thick as the siliques; sepals 4, the outer 2 saccate at the base; petals 4, light yellow, 6-9 mm. long, very slenderly clawed; stamens 6; style 1 mm. long, stigma bi-lobed.

Fruits:

Siliques spreading to ascending, curved, rigid, 6-8 cm. long and about 1.5 mm. thick, nearly quadrangular, constricted between the seeds; seeds in 1 series, wingless.

Accepted Name:
Erysimum repandum L.
Publication: Demonstr. Pl. 17. 1753. 1753.

Synonyms & Misapplications:
Cheirinia repanda (L.) Link
Additional Resources:

PNW Herbaria: Specimen records of Erysimum repandum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Erysimum repandum checklist entry.

E-Flora BC: Erysimum repandum atlas page.

CalPhotos: Erysimum repandum photos.

USDA Plants: Erysimum repandum information.

21 photographs:
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