Nigella sativa, annual herb, 80-180cm high. stem erect, 4-angled, angular prominence, base slightly lignified, unbranched, pubescent. Leaves opposite, or upper ones alternate; petiole 1-7cm long; leaf blade ovate, oblong or lanceolate, 5-15cm long

Pictures of Nigella sativa (24)

, 1-8cm wide, apex acute or acuminate, base cuneate, entire, serrate or 3-lobed in the lower leaves, green on the surface, light green on the abaxial surface, both surfaces glabrous or slightly whitish pilose. Flowers solitary, or 2-3 in leaf axils, 1-1.5cm in diam.