A herbaceous, erect, branched, glandular hairy annual, 0.3 to 2 m high. Leaves opposite, broadly ovate to deltoid; base cordate, apex acute, margins repand-dentate; petioles 7 to 18 cm long. Flowers large, foxglove-shaped, pink and dark purple blotched with yellow inside, borne in 10 to 20 flowered racemes 4 to 10 cm long. Fruit hard, woody, with 2 sharp recurved hooks; seeds oblong.

Antiseptic (leaf); stimulates the cardiovascular system and respiration and has effect on a nictating membrane (seed).

PIER

Apigenin, luteolin, cyanidin and pelargonidin-3-5-diglucoside (flower).

Scorpion sting (plant); and in epilepsy, and applied to tuberculous glands of the neck (leaf); for sore throat (juice); in inflammations (fruit); to the bites of venomous insects (Nut paste); on wounds (leaf paste); in itching and abscess (seed oil)

Chandel et al., Biodiversity in Medicinal and Aromatic Plants in India.