monkshood

A poisonous aconite (Aconitum napellus) native to Europe, having racemes of blue or purple flowers.

A plant of the genus Aconitum, especially A. Napellus. Also called friar’s-cap, foxbane, helmet-flower, Jacob’s-chariot, and wolf’s-bane. See Aconitum and aconite.

A plant of the genus Aconitum; aconite. See aconite.

Any of various poisonous plants, of the genus Aconitum, with blue or white flowers in the shape of a hood

The dried leaves or flowers of these plants formerly used as a source of medicinal alkaloids

a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite