Dioscorea quaternata (Walter) J.F.Gmel.
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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
Dioscoreaceae
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Scientific Name
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Description
Species Description - Much like no. 1 [Dioscorea villosa L.], differing as indicated in the key; frs and seeds avg larger, the valves half-obovate; 2n=36, 54. Moist open woods, thickets, and roadsides; Pa. to Ind. and Mo., s. to Fla. and La., chiefly in the Appalachian region. May. Plants with the lvs glaucous beneath have been called var. glauca (Muhl. ex Bartlett) Fernald. (D. g.)