Habitat: Sub-Himalayan tracts, Darjeeling, Konkan and the Andamans.
English: Indian Mulberry.Ayurvedic: Ashyuka, Akshi, Atchy.Siddha/Tamil: Nunaa, Togaru.Action: Fruit—emmenagogue, antileucorrhoeic, antidysenteric, anticatarrhal (used in throat infections and asthma). Root and leaf—cathartic, febrifuge, anti-inflammatory (used in gout). Root—anticongestive, hypotensive. A decoction is given to regulate menstruation.
The heartwood yielded anthraqui- nones—alizarin and its glycosides, nor- damnacanthol. Leaves contain ursolic acid and beta-sitosterol. Fruits gave asperuloside and caproic acid.The lyophilized aqueous extract of roots was evaluated for analgesic and behavioural effects in mice; positive results were observed confirming a sedative property without exhibiting any toxic effects.Ethanolic extract of the plant showed significant antimicrobial activity.Morinda coreia Buch.-Ham., M. tinctoria Roxb. (dry forests throughout the greater part of India) is considered as the wild form or a varient of Morin- da citrifolia and is known by the same vernacular nemes. The root bark gave the insecticidal glycoside, morindin-6- primeveroside, which was found lethal on cockroaches and houseflies topically.Morinda umbellata L. (Bihar, Khasi Hills and Peninsular India) is also known as Nunaa in Tamil Nadu.A decoction of root and leaves is used for diarrhoea and dysentery. The root bark contains a considerable amount of rubichloric acid and small quantities of anthraquinones.