产地:沿兴安岭山脉、长白山脉、大青山脉、贺兰山南端地区皆有出产。采制木植物为多年生草,入药用其地下根茎。于春秋二季挖掘,挖出后使其干燥者称生芪,炮制时将生芪用沸水浸煮,使其滋润,待稍干后,再剪头去尾,制成各种的规格。规格散芪、顶芪、正口芪、冲正芪、正炮 Origin: It is produced along the Xing’an Mountains, Changbai Mountains, Daqing Mountains, and the southern tip of Helan Mountain. The collected wood plants are perennial grasses, which are used for medicinal underground roots. In the spring and autumn of the second quarter, excavation, digging and drying it after the oysters, cooking oysters boiled with boiling water to make it moist, to be slightly dry, and then cut head to tail, made of various specifications. Specifications: 芪, 芪, 正芪, 正正芪, 正炮