| Origin and best harvesting period |
The base of the herb is the dried, ripe seeds of Euphorbiaceae and Euphorbiaceae, family Rosaceae. Its origin can be broadly classified as Euphorbia, Ulanai, and Elm leaf plum. Euphorbia: Ulanai (Liaoning), small plum kernel (common name). Grows on barren slopes or on the sides of fixed sand dunes and is found in Heilongjiang, Jilin, Liaoning, Hebei, Inner Mongolia, Shandong, Shaanxi, Ningxia, Gansu and other provinces. Yu Li: Little Li Ren (common name). Born in mountain bushes or by the roadside on mountain slopes, it is cultivated everywhere and is distributed in Hebei, Henan, Shanxi, Shandong, Jiangsu, Zhejiang, Fujian, Hubei, Guangdong and other provinces. Elm-leaved plum: Dahlian (common name). Born in mountain bushes or by the roadside on barren slopes, it is distributed in Heilongjiang, Jilin, Liaoning, Hebei, Shandong, Shanxi, Zhejiang and other provinces. It is mostly obtained by picking the fruit when it is ripe in summer, removing the flesh, breaking the shell and removing the seeds, and drying them in the sun. |
