Synonyms: Ammocallis rosea (L.) Small, Lochnera rosea (L.) Rchb., Vinca rosea L.
Family: Apocynaceae - Dogbane family
Growth Habit: Herb
Bangla/Vernacular Name: Noyontara.
Tribal Name: Chokful (Chakma), Fra- Pang-Pao (Murang), Sagusonga (Rakhaing).
English Name: Madagascar Periwinkle, Red Periwinkle, Periwinkle.
A bushy annual or somewhat suffruticose plant. Leaves polished, ovate or oblong. Flowers white or deep rose coloured, usually paired in the leaf axils. Follicles linear, 2.3 cm long.
The plant contains more than 100 indole alkaloids which are distributed in all parts, but more concentrated in the roots, the bark of the pink variety contains up to 9% of total alkaloids. These alkaloids include the clinically most important bis-indole alkaloids, vinblastine (vinleukoblastine), vincristine (vinleurocristine), vinleurosine and vinrosidine having leukopenic activity and vincarodine, vincoline, vincathicine, vincubine and the antimitotic alkaloids leurocolombine, vinamidine.
Leaves contain small percentages of leurosine, isoleurosine, perivine, mitraphylline, lochnerine, perosine, sitsirikine, vincamicine, perividine, canvincine, vindolicine, etc. Roots contain more than 24 alkaloids including vincamicine, catharine, vinceine, d-yohimbine (ajmalicine), vincodolicine, vindoricine, vinosidine, lochnerivine, leurosivine, cavincine, lochnericine, alstonine, vincaline I and II and serpentine. The plant also contains two secoiridoid glucosides monoterpene glycosides, ß-sitosterol, ursolic, loganic and oleanolic acids (Ghani, 2003).
Catharanthus roseus G. Don
Planted frequently in home garden.