| any of several plants belonging to the genus Circaea, of the evening primrose family, of cool and temperate regions of the Northern Hemisphere, having white flowers. |
enchanter's nightshade
any herbaceous perennial plant of the genus Circaea, in the evening primrose family (Onagraceae), that occurs in damp woodlands of the Northern Hemisphere. The plants have slender stems with opposite leaves. The small, white, two-petaled flowers grow in clusters, and the fruits have hooked bristles.
Learn more about enchanter's nightshade with a free trial on Britannica.com.