It is produced in southeastern Shanxi, northern Jiangsu, southwestern Jiangxi, western and northern Henan, western Hubei, southwestern to southeastern Shaanxi, southeastern Gansu and northeastern Sichuan. Born in hillside grass or bushes at an altitude of 450- 1600 meters.
Born at an altitude of1400-2000m, on low mountains, ditches and roadside banks. Distributed in Shaanxi, Gansu, Hubei, Sichuan and other provinces.