Pickering & Awale (2018). Introduction to Plants of Central Somaliland. Page 77.
Annual herb, spreading or erect, often tinged with purple. Leaves opposite, ovate. Flowers arising in the leaf axils, white or pink. Fruit a pink capsule with three lobes.
Habitat: Weed of cultivation, altitude sea level to 500 m.
Distribution: Native to India, common in tropical east Africa and Arabia.