Blooms: March-July
Habit: herb
Duration: annual,biennial
Origin: Introduced from Eurasia
Distribution: East of the Cascades in Washington; introduced in most of the United States and Canada
Habitat: Weed of dry waste ground and other disturbed areas.
Habit: herb
Duration: annual,biennial
Origin: Introduced from Eurasia
Distribution: East of the Cascades in Washington; introduced in most of the United States and Canada
Habitat: Weed of dry waste ground and other disturbed areas.
Species Description:
General: Finely stellate, grayish annual, the stems 3-10 dm. tall, usually branched above and also occasionally branched below.
Leaves: Leaves alternate, mainly cauline, numerous, 2-10 cm. long, oblong-ovate to oblanceolate, repeatedly compound into linear segments 1 mm. long.
Flowers: Inflorescence of bractless racemes that are often half the length of the plant; pedicles slender, about 10 mm. long; sepals 4, spreading, 2-2.5 mm. long, greenish; petals 4, yellowish, filiform, spatulate, shorter than the sepals; stamens 6, well exerted; stigma sessile.
Fruits: Siliques nearly erect, terete, linear, 2-3 cm. long and 1-1.5 mm. broad, somewhat lumpy, rounded at the tip; seeds in 1 series.
General: Finely stellate, grayish annual, the stems 3-10 dm. tall, usually branched above and also occasionally branched below.
Leaves: Leaves alternate, mainly cauline, numerous, 2-10 cm. long, oblong-ovate to oblanceolate, repeatedly compound into linear segments 1 mm. long.
Flowers: Inflorescence of bractless racemes that are often half the length of the plant; pedicles slender, about 10 mm. long; sepals 4, spreading, 2-2.5 mm. long, greenish; petals 4, yellowish, filiform, spatulate, shorter than the sepals; stamens 6, well exerted; stigma sessile.
Fruits: Siliques nearly erect, terete, linear, 2-3 cm. long and 1-1.5 mm. broad, somewhat lumpy, rounded at the tip; seeds in 1 series.
Accepted Name:
Descurainia sophia (L.) Webb ex PrantlSynonyms:
(none)
Treated in Flora of the PNW as:
Descurainia sophia
Additional Resources:
PNW Herbaria Specimens: View list of Descurainia sophia specimens in the Consortium of Pacific Northwest Herbaria database.
WTU Herbarium Specimens: View list of Descurainia sophia specimens in the WTU Herbarium database.
Washington Flora Checklist: Descurainia sophia treatment.
E-Flora BC: Descurainia sophia atlas page.
CalPhotos: Descurainia sophia images.
USDA Plants Database: Descurainia sophia.
Richard Old
Richard Old
Richard Old
Richard Old
Robert L. Carr, 2010
Robert L. Carr, 2010
Robert L. Carr, 2010
Robert L. Carr, 2010
G. D. Carr, 2011
G. D. Carr, 2011
G. D. Carr, 2011
G. D. Carr, 2011
G. D. Carr, 2011
G. D. Carr, 2011
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 WA Native Plant Society |
