Glabrous annual up to 60 cm. Leaves linear to linear-narrowly elliptic, acute, 10-50 by 2-10 mm. Inflorescence a loosely branched panicle with rather large flowers; Petals white, often with dark veins, 6-12 mm, cuneate, emarginate. Capsule ellipsoid, 3-4.5 mm, longer than calyx. Seeds c. 1 mm, black, rugose, with obtuse tubercles.
Asia-Tropical: Jawa (Jawa cultivated); Philippines (Philippines cultivated), From southern Russia throughout the Middle East present
From southern Russia throughout the Middle East Widely cultivated. In Malesia particularly cultivated in Java and the Philippines.