Cassia bonplandiana DC.
Cassia fistuloides Collad.
Cassia rhombifolia Roxb.
Family: Fabaceae - Pea family
Growth Habit: Tree
Bangla/Vernacular Name: Sonalu, Bador lathi; Bandar lathi (Mymensingh), Shondal, Sonail, Honalu (Sandwip and Noakhali), Bijoy ghanta (Rangpur).
Tribal Name: Ching lang (Murang), Mumgbum (Rakhaing), Mumgbum (Tripura).
English Name: Indian Laburnum, Puddin Pipe Tree, Purging Fistula.
A small to medium, deciduous tree. Leaves compound, 23-40 cm long; leflets 4-8 pairs, ovate or ovate-oblong, acute. Flowers in lax pendulous racemes. Corolla yellow. Pods pendulous, cylindric, straight, brown-black.
Leaves contain anthraquinone glycosides like rhein, sennosides A and B and flavones. Stem bark and wood contain leucoanthocyanidin, fistucacidin, flavones, anthraquinones, like barbalon, rhein and sennosides, lupeol, ß-sitosterol and hexacoasanol. Root bark contains tannin, phlobaphenes, oxyanthraquinone substances, flavonoid glycosides and hydroxyflavones. Flowers contain ceryl alcohol, kaempferol, fustulin and pro-anthocyanidins.
Pods contain aloe-emodin, emodin, chrysophanol, rhein, fistulic acid and sennidin A and B. 5-Nonatetracontanone, 2- hentri-acontanone and ß-sitosterol have also been isolated from pods. Pulp contains rhein, glucose, sucrose and fructose; also contains essential oil, waxy and resinous sunbstances. Seeds contain galactomannan (Ghani, 2003; Rastogi & Mehrotra, 1993).
Cassia fistula L.
Common throughout the country.