Actaea simplex, the baneberry or bugbane, is a flowering plant in the buttercup family Ranunculaceae.

A clump-forming rhizomatous herbaceous perennial, its native range includes the Kamchatka, Sakhalin and Siberian regions of Russia, western China, Manchuria, Mongolia, Korea and Japan.

[5] The common name "bugbane" refers to the fact that the leaves' scent repels insects.

In summer it produces erect or arching stems with short terminal racemes of fragrant white blooms.

The Atropurpurea Group have deep purple or black stems with pink-tinged flowers.