WOODRUFF (Asperula odorata), a small herb of the mad der family (Rubiaceae), found widely throughout Europe and northern Asia, native to Great Britain, and sparingly naturalized in the eastern United States. It has an erect stem, about 8 in. high, bearing lance-shaped leaves mostly in whorls of 8, and small white flowers in loose clusters. The dried leaves emit a hay-like fra grance.