Datura metel

Datura metel, commonly known as Devil's trumpet, metel, or downy thorn-apple is a shrub-like annual herb with large flowers, typically white or yellow. Native to China, it is now used in landscaping and gardening in North America.

Medicinal use
D. metel is one of the 50 fundamental herbs used in Chinese herbology, where it is called yáng jīn huā (洋金花).

Toxicity
This plant may be toxic if ingested in any quantity, symptomatically expressed as flushed skin, headaches, hallucinations, and possibly convulsions or even a coma. The principal toxic elements are tropane alkaloids. Accidentally (or intentionally) ingesting even a single leaf could lead to severe side effects.