Common Names: chasteberry, chaste tree, monk's pepper, vitex, gattilier Botanical Name: Vitex agnus-castus Background • Chasteberry, also known as the chaste tree, is native to parts of the Mediterranean and central Asia. Its flower, leaf, seed, and stem are used in herbal preparations. • Historically, the name "chasteberry" is linked to a belief that the plant helped restrain sexual desire. During medieval times, monks reportedly used it for this purpose. Traditionally, it was