- any of several plants belonging to the genus Datura, of the nightshade family, including some species grown as ornamentals and usually having funnel-shaped flowers and prickly pods: the leaves and seeds are the source of hallucinogenic alkaloids.
- any of various chiefly Indian solanaceous plants of the genus Datura, such as the moonflower and thorn apple, having large trumpet-shaped flowers, prickly pods, and narcotic properties
