Merriam-Webster Collegiate Dictionary - datura

 noun  Etymology: ultimately from Hindi dhatura jimsonweed (or a cognate descendant of Sanskrit dhattura?)  Date: 1598 any of a genus (Datura) of widely distributed strong-scented herbs, shrubs, or trees of the nightshade family including some used as sources of medicinal alkaloids (as stramonium) or in folk rites or illicitly for their poisonous, narcotic, or hallucinogenic properties — compare jimsonweed