Melilotus officinalis (L.) Pall.
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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 - Ascending or erect, taprooted biennial (annual) 0.5–1.5(–2) m; lfls oblanceolate to obovate, 1–2.5 cm; racemes 5–15 cm (peduncle included); pedicels 1.5–2 mm, decurved; fls yellow, 4.5–7 mm, the wings about as long as the banner; cal-teeth narrowly lanceolate, subulate; ovules 4–7; fr glabrous, 3–5 mm, strongly cross-ribbed; seeds usually 1 or 2; 2n=16. Native of Eurasia, established as a weed of waste places throughout our range, w. to the Pacific, not common southward. Summer.
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Common Names
yellow sweet-clover