Hyoscyamus muticus L.
An erect, annual or perennial, branched, up to 60 cm tall, glabrous or pubescent herb. Lower leaves petiolate, upper ones sessile or short petiolate, petiole up to 5 cm long, winged; blade fleshy, ovate, rhombic or broadly elliptic, entire, obscurely broadly toothed or lobed, acute, 3-10 x 5 cm. Inflorescence a bracteate, terminal spike. Flowers sessile or the lower short pedicellate; pedicel up to 1.5 cm long in fruit. Calyx fleshy, 1.5-2.5 x 1 cm, accrescent in fruit 3-4 x 2-2.5 cm; teeth broaldy triangular, acute, c.5 mm long. Corolla exceeding the calyx, 2-3 cm long, greenish white. Stamens slightly exserted; anthers elongate, yellowish to purple; filaments yellowish to purplish. Ovary ovoid; style longer than stamens, purplish. Stigma 0.5 mm in diameter, capitate, purple.
Saudi Arabia : Northern region. Quite common.
Distribution : Africa, Arabia, Iran.