Convolvulus oxysepalus Boiss. Diagn. Pl. Orient 7: 23. 1846. (Boissier 1846: 23).

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 : 192

188. Convolvulus oxysepalus Boiss. Diagn. Pl. Orient 7: 23. 1846. (Boissier 1846: 23). Figure 25, t. 21-27

Type.

IRAN, Aucher-Eloy 4948 (holotype G; isotype P!).

Description.

Perennial undershrub to about 25 cm with stems and branches rigid and somewhat spinescent, tomentellous with matted hairs. Leaves sessile, 1-2.5 × 0.2-0.8 cm, linear-oblanceolate, obovate-elliptic to subspathulate, acute, margin entire, base attenuate, adpressed pubescent with matted hairs. Inflorescence of more or less globose terminal heads; bracts 9-12 × 4-6 mm, broadly ovate, acute; pedicels 0; bracteoles 14 × 1-1.5 mm, lanceolate, acuminate; outer sepals 10-12 × 2.5-3.5mm, oblong-elliptic, acute, densely pilose; inner sepals similar but lanceolate; corolla 1.5-1.8 cm long, colour unknown, midpeline bands pilose; ovary and style glabrous; style divided 3 mm above base, stigmas c. 6 mm long; capsule glabrous. [ Sa’ad 1967: 84; Nowroozi 2002: 41 (plate), 101 (map)]

Distribution.

Endemic to southern Iran (Rechinger 3211, 3864, 4005, Assadi et al. 1878, Popov 51/201).

Notes.

This species has an inflorescence of terminal heads like Convolvulus scindicus , but lacks the reddish-brown hairs and the distinctive leaves of that species.