Biennial, 20-24 cm or more tall, branched. Young shoots tomentose to villous. Leaves 5-12 x 1.5-4.5 cm, sessile to subsessile, lanceolate or oblanceolate, uppermost leaves subentire, lower sinuate to dentate, the lobes up to 15 mm long. base cuneate to ± amplexicaule. Pedicel up to 10 mm long. Calyx 15-17 mm long. campanulate, enlarging in fruit, 1/2 cleft into triangular-subulate lobes 7-10 mm long, villous, especially at the base. Corolla 20-24 mm long, yellow, throat purplish, tube short, pubescent, especially within, 5-6 mm long, obtuse, nervose. Stamens included. Anthers c. 3 mm long, yellow. Filaments 9-12 mm long, slender, base pubescent. Style linear, subexserted, stigma sub-capitate, present slightly above the stamens. Pyxidium 11-14 mm long. Seeds 1.6 mm long, subreniform, compressed. rugose-tuberculate.

Fl. Per.: March-May.

Type Griffith 5924, Hb. E. Ind. Co., (K).

Distribution: Iran, Turcomannia, Afghanistan, Pakistan (Baluchistan & Kurram).

Allied to the Persian Hyoscyamus kotschyanus Pojark. From which it differs in the stem being branched and thicker, and unpitted seeds. Plant parts said to be medicinal.