Medicago lupulina 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
Fabaceae
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Scientific Name
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Description
Species Description - Annual or biennial with prostrate or ascending stems to 8 dm; stipules lanceolate, entire or toothed; lfls elliptic to obovate, 1–2 cm; peduncles much exceeding the subtending lvs; heads globose to short-cylindric, to 1 cm; fls yellow, 10–50 per head, 2–4 mm; pods nearly black, 2–3 mm, reniform, unarmed, 1-seeded, the conspicuous veins tending to be longitudinal; 2n=16. Native of Eurasia, common as a weed in our range and elsewhere. May–Sept.
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Common Names
black medick