Page author: David Giblin
Teesdalia nudicaulis
shepherd's cress
WTU specimens
Other herbaria

Distribution: Introduced west of the Cascades in Washington; British Columbia south to California and in northeastern U.S.

Habitat: Sandy or gravelly soil at low elevations.

Flowers: April-May

Origin: Introduced from Europe

Conservation Status: Not of concern

Description:
General:

Glabrous, annual herbs, the stems single, simple or freely-branched from the base, 5-25 cm. tall.

Leaves:

Leaves mostly in a basal rosette, 1.5-5 cm. long, slender-petiolate, the blades oval to oblanceolate or obovate, entire to lyrate-pinnatifid.

Flowers:

Inflorescence a terminal, bractless raceme, the stem scapose or with 1-several bract-like, entire to deeply-lobed leaves; pedicles slender, divergent, 4-8 mm. long; sepals 4, not saccate, often purple-tinged, about 0.5 mm. long; petals 4, white, 1 mm. long; stamens 6, the filaments with broad, scale-like, whitish, basal appendages; style lacking.

Fruits:

Silicles strongly obcompressed, oblong-obovate, 3-3.5 mm. long and nearly as wide, the valves keeled and slightly winged above; seeds 2 in each cell.

Accepted Name:
Teesdalia nudicaulis (L.) W.T. Aiton
Publication: Hortus Kew. 4: 83. 1812. 1812.

Synonyms & Misapplications:
Iberis nudicaulis L.
Additional Resources:

PNW Herbaria: Specimen records of Teesdalia nudicaulis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Teesdalia nudicaulis checklist entry.

E-Flora BC: Teesdalia nudicaulis atlas page.

CalPhotos: Teesdalia nudicaulis photos.

USDA Plants: Teesdalia nudicaulis information.

19 photographs:
Group by