An undershrub, 90-200 cm tall, branches subglabrous. Leaf c. 5-15 cm long, variable in breadth, oblong-lanceolate, acute or subacute, mucronate, glabrous above, finely pubescent below; petiole c. 1.5-3.5 mm long; stipules large, leafy. Inflorescence a 20-50-flowered, terminal raceme, c. 25-45 cm long. Bract 12-20 mm long, ovate, foliaceous ; bracteoles 2, 1-2 mm long, situated below the middle of the pedicel. Calyx c. 11-14 mm long, subglabrous, teeth c. 8-9 mm long, upper teeth large, triangular. Corolla yellow with a purplish tinge. Fruit c. 2.5-5.5 cm long, linear-oblong, glabrous, 20-30-seeded; stipitate.

Fl.Per.: October-December.

Type: ‘India orient., Benj.Heyne-whereabouts uncertain.

Distribution: Pakistan; India; Sikkim; Nepal; Burma.