Epimedium is a perennial herb, the plant height is 20-60 cm, the rhizome is stubby, lignified, dark tan, the stem is erect, ribbed, glabrous, usually without basal leaves, Epimedium extract is derived from Epimedium The dried stems and leaves of Agaricus are processed as raw materials, and there are many specifications of commercial extracts, usually with icariin or total flavonoids as the standardization index.