Synonyms: Bignonia indica L.
Growth Habit: Tree
Bangla/Vernacular Name: Khona, Sona, Hona, Nasona, Patti, Dinga, Kanak, Kanaidinga, Bhinga (Mymensingh), Thona (Rema-Kalenga).
Tribal Name: Bailya, Khona gula, Krang-sia-bao, Taita (Chakma), Kering, Kharing (Garo), Egaroh, Kraat Saba,, Khron Sha mi,Krongsami(Marma), Khama (Mogh), Long Kock Sim (Murang), Thakurung,Thakhurung bathai (Tripura).
English Name: Indian trumpet flower.
A small, glabrous, more or less unbranched, deciduous tree. Leaves very large, bi or tripinnate near the base, unipinnate at the apex; leaflets ovate-acuminate, turn coppery brown or purplish before shedding. Flowers numerous in large, erect racemes, corolla usually lurid-purple, reaching 10 cm long, fleshy. Fruit an oblong, flat capsule, 45-75 cm long, tapering towards both ends, woody when mature.
Bark and seeds contain a crystalline bitter substance, oroxylin. Bark also contains alkaloids, glucosides, baicalein, sitosterol and p-coumaric acid. Stem and root bark contain flavone-colouring matters like oroxylin-A, baicalein, chrysin, di-Me-terephthalate and 3-methoxy-6, 7-dihydroxyflavone. Ellagic acid and nine naphthalene related compounds have been isolated from the root bark. A number of phenylethanoids and cycloxylethanoids have been isolated from the fruits and presence of large number of flavonoids have been reported in the seeds.
Heartwood yield prunetin and ß-sitosterol (Ghani, 2003). Baicalein, its 6-glucuronide and 7-glucuronide, scutellarein, its 7-glucuronide have been isolated from leaves and stem bark. Stem bark also contains scutellarein-7-rutinoside (Rastogi and Mehrotra, 1993).
Occurs in the forests of Chittagong, Chittagong Hill Tracts, Cox's Bazar, Dhaka-Tangail. Also found in village shrubberies and homestead throughout the country.
Return from Oroxylum indicum (L.) Vent. to Ethnobotany Plants profile.