Convolvulus lindbergii Sa'ad , Meded. Bot. Mus. Herb. Rijks Univ. Utrecht 281: 99. 1967. ( Sa'ad 1967: 99).

Wood, John R. I., Williams, Bethany R. M., Mitchell, Thomas C., Carine, Mark A., Harris, David J. & Scotland, Robert W., 2015, A foundation monograph of Convolvulus L. (Convolvulaceae), PhytoKeys 51, pp. 1-282 : 149-150

126. Convolvulus lindbergii Sa'ad, Meded. Bot. Mus. Herb. Rijks Univ. Utrecht 281: 99. 1967. ( Sa'ad 1967: 99). Figure 16, t. 24-30

Type.

AFGHANISTAN, Lindberg 409 (holotype W!).

Description.

Much-branched undershrub to 30 cm, stem and all vegetative parts grey-sericeous, branches rigid and with few leaves, ascending at about 60°. Leaves sessile, 6-20 × 1-5 mm, linear to narrowly oblong, obtuse, entire, narrowed at both ends. Flowers 1-3, arising in the axils of small bracts on a rigid peduncle; bracts 2 × 1 mm, triangular; peduncles 0.8-2.5 cm; bracteoles c. 1 mm; pedicels 0-1.5 mm, sepals 3-3.5 × 2 mm, oblong-elliptic, densely sericeous, outer rounded, inner mucronulate; corolla 0.9-1 cm long, white, midpetaline bands sericeous, weakly lobed; ovary globose, pubescent (or glabrous in Rechinger 35336), style glabrous, divided c. 4 mm above base, stigmas 1.5 mm. Capsule and seeds unknown.

Distribution.

Afghanistan (Rechinger 35336, Gibbons 227, Breckle 4828).

Notes.

This poorly known species is characterised by the grey sericeous stems and leaves, small sericeous mucronulate calyx and short corolla. It may be only a form of Convolvulus eremophilus .