Deliriants earn their name from the confusion they sow in the mind, as contrasted to more lucid states produced by other hallucinogens. The term generally refers to anticholinergic agents which block the neurotransmitter acetylcholine.
Natural deliriants are produced by several angiosperms, including belladonna, datura, angel’s trumpets, henbane, and mandrake. Uncured tobacco is also a deliriant, owing to its formidable nicotine content.
Though legal, deliriants are unpopular as recreational drugs due to the severe and unsavory nature of hallucinations harvested. And the invocative alkaloids are often poisonous.
Despite the danger inherent these plants, they were used medicinally by the indigene peoples where they grew, and with spiritual intent.