Vicia sativa subsp. nigra
Read about Vicia sativa subsp. nigra in the Standard Cyclopedia of Horticulture
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Vicia angustifolia, Linn. Annual, glabrous or pubescent: sts. slender, 1-2 ft. long: lvs. short-petioled or nearly sessile with 4-8 pairs of lfts. and an unbranched or 2-3-branched tendril; lfts. linear, lanceolate or oblanceolate, up to 1 1/2 in. long and 1/8 in. wide: fls. purple, 1/2 – 3/4 in. long: pod glabrous, 1-2 in. long. Eu. R.F.G. 22:250. B.B. 2:2622.—Naturalized and established from Nova Scotia to Fla. The seeds mature earlier than those of V. sativa. In some parts of the S. it often makes up a considerable portion of the hay.
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