A smooth twining vine. Leaves are stalked (or the uppermost ones stalkless), ovate-elliptic or lanceolate, 3.5 to 8 centimeters long, and 0.8 to 3.5 centimeters wide, with somewhat entire or toothed margins. The lowering heads are panicled, narrow, yellow, and 1 to 1.5 centimeters long. The involucral-bracts are smooth and up to 6 millimeters long. Achenes are very small and smooth, with very close and slender ribs.