Convolvulus virgatus Boiss., Diagn. Pl. Orient. 7:24. 1846. (Boissier 1846: 24).

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 : 126-127

100. Convolvulus virgatus Boiss., Diagn. Pl. Orient. 7:24. 1846. (Boissier 1846: 24). Figure 13, t. 9-17

Type.

IRAN, Aucher-Eloy 4955 (holotype G; isotypes K!, P!, W!).

Description.

Undershrub forming a small bush up to 40 cm high and 60 cm wide; stems from a deep woody taproot, many, ascending, rigid, green, glabrous, sometimes spinescent at the tips, weakly divaricate. Leaves sessile, 1.7-2.5 × 0.2-0.4 cm, lanceolate or linear-lanceolate, glabrous, acute or acuminate, margin entire, base truncate to obscurely auriculate. Inflorescence of few-flowered, axillary, pedunculate, hirsute heads; peduncles 1.5-4.5(-8) cm, rigid, woody; bracteoles 5-12 × 1-2 mm, very variable in size, linear or lanceolate, acute; pedicels 1-2 mm, often bent at a sharp angle to the peduncle; sepals 8-9 × 2-2.5 mm, ovate, acuminate, villous; corolla 1.3-2.1 cm, usually white, sometimes pinkish, shallowly lobed, the midpetaline bands ending in teeth, pubescent, sometimes darker pink; ovary glabrous; style glabrous, divided c. 5.5 mm above the base, stigmas 1-1.25 mm, elliptic. Capsule glabrous; 1-2-seeded; seeds tuberculate, glabrous. [ Sa’ad 1967: 86; Austin and Ghazanfar 1979: 16; Jongbloed 2003: 316 (photo); Pickering and Patzelt 2008: 169 (photo)]

Notes.

We recognise two varieties: