Page author: David Giblin
Streptanthella longirostris
long-beaked fiddle mustard, streptanthella

Distribution: Occurring in south-central Washington; Washington south to California, east to Wyoming and New Mexico.

Habitat: Open desert and sagebrush slopes.

Flowers: April-May

Origin: Native

Growth Duration: Annual, Biennial

Conservation Status: Not of concern


Glabrous, glaucous annual, the stem simple to freely-branched, 1.5-5 dm. tall.


Basal and lower cauline leaves narrowly oblanceolate, 3-6 cm. long, wavy-dentate, deciduous by flowering; upper cauline leaves linear, entire.


Inflorescence of open, elongate, bractless racemes; pedicles 1.5-3 mm. long, reflexed; sepals 4, somewhat spreading and saccate at the base, 2-3 mm. long, greenish, scarious-margined; petals 4, narrowly spatulate, slightly longer than the sepals, white with purplish veins; stamens 6, the filaments equaling the petals; style lacking.


Siliques reflexed-appressed, strongly compressed, 3.5-4.5 cm. long and 1.5 mm. broad, the valves narrowed to a slender, beak-like tip 3.5 mm. long; seeds in 1 series.

Accepted Name:
Streptanthella longirostris (S. Watson) Rydb.
Publication: Fl. Rocky Mts. 364. 1917. 1917.

Synonyms & Misapplications:
Streptanthella longirostris (S. Watson) Rydb. var. derelicta J.T. Howell [Abrams]
Additional Resources:

PNW Herbaria: Specimen records of Streptanthella longirostris in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Streptanthella longirostris checklist entry.

E-Flora BC: Streptanthella longirostris atlas page.

CalPhotos: Streptanthella longirostris photos.

USDA Plants: Streptanthella longirostris information.

15 photographs:
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