Prickly Ash Bark Source & Identity
Zanthoxylum bungeanum Maxim. is a thorny shrub or small tree of the citrus family (Rutaceae), grown across northern and western China. The part used here is the bark, taken from the stems and branches. The fruit pericarp, which carries the numbing flavor of Sichuan pepper, is another part of the tree and has its own extract and powder, and leaves and seeds are not used. In Western herbal trade, prickly ash bark usually means Zanthoxylum americanum, the northern prickly ash of North America, which is a different species, so the botanical name defines this offer. The bark contains alkaloids, coumarins and lignans. The tingling sanshool amides are best known from the fruit, not the bark. These groups are named without numbers.












