Descurainia sophia (L.) Prantl
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Brassicaceae
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Scientific Name
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Description
Species Description - Erect, 3–8 dm, canescent throughout; lvs ovate to obovate or the upper narrower, 2–3 times pinnatifid into linear or narrowly oblanceolate segments; fls 3 mm wide; mature racemes loose, with widely ascending pedicels 8–14 mm; frs narrowly linear, 15–25 × 0.5–1 mm; septum with longitudinal veins; seeds in each locule (12–)15–25, in one row; 2n=28. Native of Eurasia, established as a weed in fields and waste places throughout most of the U.S. and s. Can. May–July. (Sophia s.; S. multifida; Sisymbrium sophia)
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Common Names
herb sophia, tansy-mustard