Noun
A poisonous plant (Aconitum Lycoctonum), a kind of monkshood; also, by extension, any plant or species of the genus Aconitum. See Aconite.
Source: Webster's dictionaryAdditionally Severus Snape lectures Harry Potter when they first meet in the first novel, Harry Potter and the Philosopher's Stone that "As for monkshood and wolfsbane, they are the same plant, which also goes by the name of aconite." Source: Internet
As long as the wolfsbane is present in Mina's bedroom, she will be safe from Count Dracula. Source: Internet
He causes the nurse to become drowsy and when she awakes from his spell, she removes the sprigs of wolfsbane placing it in a hallway chest of drawers. Source: Internet
Towards the end of the film, "Van Helsing holds up a sprig of wolfsbane". Source: Internet
With the removal of the wolfsbane from Mina's room, Count Dracula mysteriously appears and transports Mina to the dungeon of the castle. citation *The 1941 film The Wolf Man and its remake suggest people can become werewolves when Wolfsbane blooms. Source: Internet