Paeonia japonica (Makino) Miyabe & Takeda; P. obovata var. glabra Makino; P. obovata subsp. japonica (Makino) Halda; P. obovata var. japonica Makino; P. obovata f. oreogeton (S. Moore) Kitagawa; P. oreogeton S. Moore.

Leaves abaxially usually glabrous or sparsely (rarely densely) pubescent or hirsute. 2n = 10*, (20*).

Deciduous broad-leaved, mixed broad-leaved, and coniferous forests; 200--2000 m. Anhui, N Guizhou, Hebei, Heilongjiang, SE Henan, NW Hunan, N Jiangxi, E Jilin, Liaoning, SE Nei Mongol, S Sichuan, NW Zhejiang [Japan, Korea, Russia (Far East)].