Usually a cultivated ornamental in warmer climates
All animals including people.
All parts of the plant contain significant quantities of tropane alkaloids, including hyoscine (scopolamine), hyoscyamine, norhyoscine. The flowers may contain up to 0.83% hyoscine, while the leaves contain 0.4% hyoscine. The flowers of older plants contain as much as 3mg of hyoscine. Other plant genera containing similar tropane alkaloids included Datura (Jimson weed) and Hyoscyamus (Black henbane). The tropane alkaloids antagonize the actions of acetylcholine and muscarinic, cholinergic receptors, and therefore have a profound effect upon the autonomic nervous system involving the heart, the digestive system, the eye and the central nervous system. The tropane alkaloids have hallucinogenic properties, that have led to human abuse and fatalities. Many human intoxications are associated with consuming the fresh leaves and flowers, or making tea from the leaves. Children handling the plant may develop temporary blurred vision and dilated pupils.
Ref: Andreola B, Piovan A, Da Dalt L, Filippini R, Cappelletti E. Unilateral mydriasis due to Angel's trumpet. Clin Toxicol (Phila). 2008. 46 :329-331.
Consisting of 5 species and several hybrids, the Brugmansia species originate in the Andes Mountains of South America. These evergreen shrubs or small trees have large, soft, elliptic leaves with entire or serrated edges. The characteristic flowers are large, pendant, trumpet-shaped and are white yellow or pink in color. The fruits are fleshy, unarmed, globular, or long and cylindrical. The leaves and stems when crushed have a strong odor reflective of their alkaloid content.
Dry mucous membranes and constipation. Animals eating the plant will develop intestinal stasis leading to bloating and colic.
Physostigmine as a cholinergic drug may be used to counter the effects of the tropane alkaloids if necessary.
Rapid heart rate
Respiratory failure develops in severe cases.
Depression, abnormal behavior, hallucinations in people who eat the flowers or leaves