Where does the yellow clover come from?

Penthorum chinense is a kind of Chinese herbal medicine, so it is best to ask where penthorum chinense is produced. Of course, the place of production is better, that is, the penthorum chinense produced in Gulin County is the best. Gu Lin is an authentic Gan Yang Ganhuangcao tea, so when you buy Ganhuangcao, you must prove that its origin is Gulin County. You can go to the yellow grass shop. Chengdu Ganhuangcao Store Address: Shuangnan Store: No.239 Dashi West Road 18 (He Kang Lijing Gate) Yingmenkou Store: No.23, Olin Spring Business Building, No.5 Lidun East Street 108 (next to Super 8 Hotel at Yingmenkou).