baneberry

noun, plural bane·ber·ries.

1. any plant belonging to the genus Actaea, of the buttercup family, having large compound leaves, spikes of small white flowers, and poisonous red or white berries.
2. the berry of such a plant.

noun plural -ries

1. Also called: (Brit) herb Christopher, (US) cohosh any ranunculaceous plant of the genus Actaea, esp A. spicata, which has small white flowers and red or white poisonous berries
2. a berry of any of these plants