The Collaborative International Dictionary
Stramonium \Stra*mo"ni*um\, n. [NL.; Cf. F. stramoine.] (Bot.) A poisonous plant ( Datura Stramonium); stinkweed. See Datura, and Jamestown weed.
Atropine \At"ro*pine\, n. [Gr. ? inflexible; hence ? ?, one of the three Parc[ae]; 'a priv. + ? to turn.] (Chem.) A poisonous, white, crystallizable alkaloid, extracted from the Atropa belladonna, or deadly nightshade, and the Datura Stramonium, or thorn apple. It is remarkable for its power in dilating the pupil of the eye. Called also daturine.
Jamestown weed \James"town` weed`\ (Bot.) The poisonous thorn apple or stramonium ( Datura stramonium), a rank weed early noticed at Jamestown, Virginia. See Datura.
Note: This name is often corrupted into jimson, jimpson, and gympsum.
Wikipedia
Datura stramonium, known by the common names Jimson weed or Devil's snare, is a plant in the nightshade family. It is believed to have originated in Mexico, but has now become naturalized in many other regions. Other common names for D. stramonium include thornapple and moon flower, and it has the Spanish name Toloache. Other names for the plant include hell's bells, devil’s trumpet, devil’s weed, tolguacha, Jamestown weed, stinkweed, locoweed, pricklyburr, and devil’s cucumber.
Datura has been used in traditional medicine to relieve asthma symptoms and as an analgesic during surgery or bonesetting. It is also a powerful hallucinogen and deliriant, which is used spiritually for the intense visions it produces. However, the tropane alkaloids responsible for both the medicinal and hallucinogenic properties are fatally toxic in only slightly higher amounts than the medicinal dosage, and careless use often results in hospitalizations and deaths.
Usage examples of "datura stramonium".
Jimson weed (Datura stramonium): variety of thorn apple plant, found in N.
Over there, datura stramonium, belladonna, hemlock: they can bring on drowsiness, stimulation, or both.
In general Stephen Maturin was a poor sleeper, and since his youth he had turned to a number of allies against the intolerable boredom - and sometimes far, far worse than boredom, he having a most vulnerable heart - of insomnia: poppy and mandragora being the most obvious, seconded by the inspissated juice of aconite or of henbane, by datura stramonium, creeping skerit, leopard's bane.