A branched woody spiny undershrub, densely short white pubescent, 30-90 cm tall. Older branches and spines covered with a brownish bark. Leaves 12-17 (-24) x (3- ) 5-7 mm, usually more than 1 at a node, appressed pubescent, oblong to ovate, obtuse, base ± cordate or cuneate, petiole 3.5 mm long. Flowers axillary, solitary, pedicellate, pedicel 5-10 mm long, compressed, stout, densely white appressed hairy. Bracts with a middle longer and 2 short lateral lobes. Bracteoles small. Sepals subequal, 6-8 x 3-4 mm, broadly ovate to oblong, subacute to obtuse, mucronate, scarious, the outer sepals glabrous or sparsely hairy in the basal portion, the inner glabrous. Sepals reflexed in fruit. Corolla 20-26 mm long, white to pink, sparsely hairy bands outside, the tube glabrous. Filaments unequal, 6-10 mm long, subulate and glandular in the lower portion, anthers c. 3 mm long. Ovary glabrous, style c. 9 mm long, c. 3 times the length of the cylindrical stigma (fide Sa’ad, l.c.). Capsule subglobose, beaked at the top, 6 x 5 mm, 2-valved, glabrous. Seeds oblong, 4.5 mm long, brown, smooth, glabrous.

A species variable in pubescence and size.

Lower Taxa

• Convolvulus leiocalycinus var. glaber S. Ghazanfar
• Convolvulus leiocalycinus var. leiocalycinus