poisonous plant (also known as monkshood and wolf's bane), 1570s, from French aconit, from Latin aconitum, from Greek akoniton, which is of unknown origin.

(n) any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowers

The herb Monkshood or Wolfsbane. Classic fabulists ascribe its poisonous qualities to the foam which dropped from the mouths of the three-headed Cerbrus, when Hercules, at the command of Eurystheus, d [..]

Dried root of Aconitum napellus.

1. <botany> The herb wolfsbane, or monkshood; applied to any plant of the genus Aconitum (tribe Hellebore), all the species of which are poisonous. 2. An extract or tincture obtained from Aconitum napellus, used as a poison and medicinally. Winter aconite, a plant (Eranthis hyemalis) allied to the aconites. Origin: L. Aconitum, Gr., cf. F. Ac [..]

Plant used in potions. Also known as monkshood or wolfsbane.