Transverse section of a Datura Stem (Datura stramonium). Light micrograph of a section through the stem. The magnification is 200 times when printed 10 inches wide. Datura is also known by the common names Jimson Weed, Gypsum Weed, Stink Weed, Loco Weed, Jamestown Weed, Thorn Apple, Angel's Trumpet, Devil's Trumpet, and Devil's Snare. It is a common weed in the nightshade family. It contains tropane alkaloids that are sometimes used as a hallucinogen.