The
mulberry, family Moraceae genus Morus, is a deciduous tree that flowers and bears fruit. Unripe fruit and green parts of the mulberry plant have a white sap that is intoxicating and is purported to be mildly
hallucinogenic. Anecdotal reports from ingesting the plant describe it as an edgy, somewhat irritated stimulated feeling with a heightened sense of awareness and a feeling of tightness in the head.
Stomach discomfort may also occur.
The plant contains many
alkaloids: (2R,3R,4R)-2-hydroxymethyl-3,4-dihydroxypyrrolidine-N-propionamide from the root bark of Morus alba L., and 4-O-α-d-galactopyranosyl-calystegine B2 and 3β,6β-dihydroxynortropane from the fruits. 1-Deoxynojirimycin, a potent
α-glucosidase inhibitor was found along with 15 other polyhydroxylated alkaloids. Some alkaloids found in the leaves were potent inhibitors of mammalian digestive glycosidases.