Sisymbrium irio L.
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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
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Species Description - Erect, to 6 dm, spreading-hairy below; lower lvs deeply pinnatifid with oblong to ovate, entire to dentate or angularly lobed segments, the upper lvs with fewer and smaller lobes; infl very contracted, the young frs elongating rapidly and projecting beyond the fls; sep 2–3 mm; pet 3–4 mm; anthers ca 0.7 mm; pedicels slender, divergent, 5–10 mm; frs linear, 2.5–5 cm; 2n=14, 28, 42, 56. Native of Eurasia, occasionally found in our range, and becoming a weed in the Pacific states. May, June. (Norta i.)
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Common Names
London rocket