Dioscorea villosa 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
Dioscoreaceae
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Scientific Name
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Description
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Species Description - Rhizomes relatively slender; stems twining counterclockwise, to 5 m, usually glabrous; lvs all or nearly all alternate, the blades glabrous or hairy beneath, cordate- ovate, abruptly acuminate, 5–10 cm, 7–11-nerved; staminate infl widely branched, with 1–4 fls per node; pistillate spikes 5–10 cm, with solitary fls; ovary fusiform, 5–7 mm; fr 16–26 mm, each of the 3 thin valves semi-orbicular or half-ovate; seeds 8–18 mm; 2n=60. Moist open woods, thickets, and roadsides; Conn. and N.Y. to Minn., s. to Fla. and Tex. June, July. Some coastal-plain plants with hairy stem and relatively few-fld infls have been segregated as var. hirticaulis (Bartlett) Ahles. (D. hirticaulis)
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Common Names
colic-root