Habitat: Native to Sri Lanka; grown in gardens throughout the warmer parts of India.
English: Mast tree, Fake Asoka tree, False Devadaru, Cemetry treeAyurvedic: Devadaari (Devadaaru is equated with Cedrus deodara). (An adulterant to the bark of Saraca asoca.)Siddha/Tamil: Nettilingam.Action: Febrifuge. Causes cardiac depression.
The stem bark contains clerodane diterpenes, polyalthialdoic acid and kolavenic acid. The stem and its bark also contain the cytotoxic aporphine alkaloid, liriodenine, besides nor-oli- veroline and oliveroline-beta-N-oxide. Azafluorene alkaloids are also present in the bark and leaves. The leaf exhibits fungitoxic activity.Polyalthia simiarum Hook. f. & Thoms. (Orissa, Assam, Bengal, Bihar, Eastern Himalaya) is also equated with Fake Ashoka tree. It is known as Boga-khamtou in Assam, Wojarah, Mongai in Orissa and Labshi, Kutti in Nepal.Polyalthia suberosa Thw. (from Assam to Uttar Pradesh in the North and Kerala in the South) is known as Chamkhirni. The leaves contain alpha-and beta-amyrin, lupeol, beta- sitosterol, stigmasterol and campes- terol. The stems and leaves contain the triterpene, suberosol, which showed anti-HIV replication activity. The stem bark contains alkaloids, oxostepha- nine and lanuginosine, which exhibited antibacterial activity against several Gram-positive and Gram-negative bacteria.