北方獐牙菜 (原变种) bei fang zhang ya cai (yuan bian zhong)

Sczukinia diluta Turczaninow, Bull. Soc. Imp. Naturalistes Moscou 13: 166. 1840; Ophelia chinensis Bunge ex Grisebach.

Corolla pale blue. 2n = 18, 20, or 24.

Edges of cultivated land, wet and shady slopes, valleys; 100-2600 m. Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, N Sichuan, Xinjiang [Japan, Korea, Mongolia, Russia].