Colchicine :: Colchicine (n.) A powerful vegetable alkaloid, C17H19NO5, extracted from the Colchicum autumnale, or meadow saffron, as a white or yellowish amorphous powder, with a harsh, bitter taste; -- called also colchicia..
Colchicum :: Colchicum (n.) A genus of bulbous-rooted plants found in many parts of Europe, including the meadow saffron..