Herbaceous, unarmed, ± erect, unbranched, to 8 dm, without tendrils, or producing a few from the upper lvs only; lvs few, mostly less than 20, often only 7–9, ± crowded on the upper part of the stem only, narrowly to broadly ovate, truncate to cordate at base, convexly narrowed to a short cusp, hairy beneath; peduncles axillary to lance-linear bracts on the lfless lower part of the stem, or rarely also from the axil of the lowest lf, ascending, 5–10 cm, with few (seldom more than 25) fls; tep 3.5–5 mm; seeds 3–5; 2n=26. Rich woods and thickets; Mich. to Minn., s. to Ky., Mo., and e. Okla. May.
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