Convolvulus urosepalus Pau, Trab. Mus. Ci. Nat., Ser. Bot. 14: 27. 1918. (Pau 1918: 27).

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 : 159

144. Convolvulus urosepalus Pau, Trab. Mus. Ci. Nat., Ser. Bot. 14: 27. 1918. (Pau 1918: 27). Figure 19, t. 9-15

Type.

IRAN, de la Escalera s.n. (holotype MA-94152!).

Description.

Similar to Convolvulus acanthocladus . Stems erect, straight and spreading at a very acute angle to the main axis, grey-sericeous and pilose with spreading hairs, branches spine-tipped but lateral spines lacking. Leaves linear, 5-15 × 1-2 mm. Flowers solitary or paired in the uppermost leaf axils, sessile, characteristically overtopped by the spinescent branches; sepals 12-13 mm long, similar in shape to those of Convolvulus acanthocladus but more abruptly caudate with a pronounced apical mucro and distinctly longer; corolla c. 2.5 cm long, white but pinkish in bud. [ Rechinger 1961: 22; 1963: 25; Nowroozi 2002: 25 (plate), 100 (map)]

Distribution.

Endemic to Iran (Koelz 18056).