Convolvulus haussknechtii Boiss.
Stout, branched perennial herb, 13-40 cm high, gro wing in tufts. Branches densely patent white, pale yellow-tomentose. Leaves grey-green or whitish-green, 30-56 x 10-21 mm, sessile, ovate-elliptic, acute, densely white-tomentose, veins impressed. Inflorescence axillary cymes of 3-6 flowers. Peduncle c. 20 mm long. Flowers pedicellate, pedicel c. 2 mm, long, hairy. Bracts c. 15 x 3 mm, linear-lanceolate, long acuminate, tomentose. Corolla c. 23 mm long, pale cream or white. Filaments unequal, 8-10 mm long. Ovary glabrous, style c. 4 mm long, filiform. Capsule ovoid, c. 5 mm long. Seeds 3 mm long, dark brown, shortly pubescent.
Fl. Per.: May-June.
Type: Afghanistan, Griffith 5859 (holo.: G-Boiss.).
B-6 N.W.F.P. Landi Kotal, Lowndes 688 (E).
Distribution: Afghanistan, Pakistan.
An Afghan species, which probably occurs on the border areas in the N.W.F.P. region. Grows gregariously at an alt. of 600-1800 m, in ravines, dry rocky slopes and plains. A low gro wing plant, its pubescence gives it a silvery appearance, which becomes brown with age in herbarium material.