CANSCORA DIFFUSA (Vahl.) R. Br.

Family: Gentianaceae

Bengali/Vernacular Name: Dhankuni

Description of the Plant:
An erect, much-branched, slender annual, 15-60 cm high. Leaves membranous, 1.8-4 cm long, 3-nerved, broadly ovate, acute; lower smaller, elliptic, acute. Flowers numerous, rosy, in lax, diffuse, paniculate cymes; calyx tube up to 6 mm long, 4-ribbed; corolla tube up to 8 mm long. Capsule oblong, 4-7 mm long.

Using Information:
The Plant is used as a nerve tonic and substitue for Canscora decussata.

Chemical Constituents:
Aerial parts and flowering tops contain free xanthones, xanthone glucosides, (-)-loliolide, methoxy- and hydroxyxanthones and its 3-O-rutinosyl derivative. Roots contain β-amyrin, friedelin, gentianine, xanthones, and 16 xanthones including mangiferin. Ash of the herb renders salts containing iron, potassium, calcium, nitrates and carbonates (Asolkar et al., 1992).

Distribution:
Chittagong, Maheshkhali, St. Martins (Cox’s Bazar), Kaptai, Lama, Faridpur, Barguna, Rajshahi, Kustia, Dhaka, in fallow lands.