Erucastrum gallicum
dog mustard, hairy rocket

Distribution: Weedy introduction from central Europe, fairly common in eastern United States; found in a few scattered locations in the Pacific Northwest.

Habitat: Waste areas and disturbed soil.

Flowers: May - July

Origin: Introduced from Eurasia

Conservation Status: Not of concern


Annual with soft hairs retrorsely aligned and appressed, the stems simple to freely branched, 1.5-8 dm. tall.


Leaves alternate, 3-20 cm. long, pinnatifid, the segments often again wavy lobed.


Flowers in a loose, elongate, bracteate raceme, the lowermost flowers sometimes in the axils of scarcely modified leaves; pedicles slender, ascending, under 1 cm. long; sepals 4, slightly saccate at the base; petals 4, pale yellow, 4-7 mm. long; stamens 6; style 1.5-3 mm. long.


Siliques 2-4.5 cm. long and 1.5 mm. thick, terete-quadrangular, the valves prominently keeled; seeds in 1 series.

Accepted Name:
Erucastrum gallicum (Willd.) O.E. Schulz
Publication: Bot. Jahrb. Syst. 54(Beibl. 119): 56. 1916. 1916.

Synonyms & Misapplications:
Erucastrum pollichii Schimp. & Spenner
Sisymbrium gallicum Willd.
Additional Resources:

PNW Herbaria: Specimen records of Erucastrum gallicum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Erucastrum gallicum checklist entry.

E-Flora BC: Erucastrum gallicum atlas page.

CalPhotos: Erucastrum gallicum photos.

USDA Plants: Erucastrum gallicum information.

11 photographs:
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