Epimedium grandiflorum: an ivy-like ground shrub native to the higher and drier areas of China and Tibet. It is in the same plant family as barberry and Oregon grape. The name of the herb in Mandarin, yin yang huo, roughly translates to "weed for licentious goat. Common names: Bishop’s Hat; Barren Wort; Fairy Wings; Horny Goat Weed. Powder is milled from the leaves, and can be encapsulated, extracted, or infused. No known precautions. We recommend that you consult with a qualified healthcare practitioner before using herbal products, particularly if you are pregnant, nursing, or on any medications. (Epimedium Leaf Powder Organic).