Definition: Cascara consists of the dried, whole or fragmented bark of Rhamnus purshianus D.
本品为鼠李科植物珀希鼠李Rhamnus purshianus D.
英语百科
Rhamnus purshiana
(重定向自Rhamnus purshianus)
Rhamnus purshiana (cascara buckthorn, cascara, bearberry, and in the Chinook Jargon, chittem and chitticum; syn. Frangula purshiana, Rhamnus purshianus) is a species of buckthorn native to western North America from southern British Columbia south to central California, and eastward to northwestern Montana.