- any plant belonging to the genus Ipomoea, of the morning glory family, certain species of which are cultivated for their large, showy flowers.
- the dried root of certain varieties of plants of this genus, yielding a resin sometimes used as a cathartic.
- any tropical or subtropical convolvulaceous plant of the genus Ipomoea, such as the morning-glory, sweet potato, and jalap, having trumpet-shaped flowers
- the dried root of a Mexican species, I. orizabensis, which yields a cathartic resin
