Plants appressed pubescent to villous. Stems prostrate to weakly climbing, or ± erect, to 1 m. Petiole 1--12 mm; leaf blade narrowly triangular to oblong, 3--7 X as long as wide, unlobed to slightly hastate or with short lobes less than 1/4 length of midvein, sparsely pubescent to villous. Peduncle not exceeding leaves, pubescent; bracteoles 1.3--2.4 X 1--1.8 cm, apex acute to obtuse. Corolla pink, 4.4--5.5 cm. Stamens 2.5--3.3 cm; anthers 5(--6) mm. 2n = 22.

Grassy places, mountain slopes, sometimes a weed of cultivation; 300-700(-1700) m. Anhui, Hebei, Heilongjiang, Jiangsu, Jilin, Liaoning, ?Nei Mongol, Shandong [Korea, ?Mongolia, Russia]