Convolvulus pyrrotrichus Boiss., Diagn. Pl. Orient., ser. 2, 3: 122. 1856. (Boissier 1856: 122).

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 : 183-184

175. Convolvulus pyrrotrichus Boiss., Diagn. Pl. Orient., ser. 2, 3: 122. 1856. (Boissier 1856: 122). Figure 24, t. 38-44

Convolvulus gonocladus subsp. pyrrotrichus (Boiss.) Rech.f., Biol. Meddel. Kongel. Danske Vidensk. Selsk. 10: 80. 1959. ( Rechinger 1959: 80) Type. Based on Convolvulus pyrrotrichus Boiss.

Convolvulus haussknechtii Boiss., Fl Orient. [Boissier] 4: 102. 1875, p.p. illegitimate superfluous name for for both Convolvulus gonocladus Boiss. and Convolvulus pyrrotrichus Boiss. (1846) cited in synonymy; specimens from Afghanistan (Griffith 5879) ( Boissier 1875b: 102). Type. Various syntypes.

Type.

AFGHANISTAN, Griffith 5859 (holotype G; isotypes K!, P!).

Description.

Vigorous perennial with stout, woody rootstock and stem base, to 50 cm high, the whole plant densely covered in long, soft white hairs. Basal leaves 3-13 × 0.6-2.5 cm, oblong-lanceolate, acute at both ends and with a long winged petiolate base; stem leaves sessile, 3-12 × 0.3-3.8 cm, elliptic or oblong-elliptic, acute, entire, broadly to narrowly cuneate at base, diminishing in size upwards, veins prominent. Inflorescence of sessile (above) or shortly pedunculate (below) capitula or scorpioid cymes arising from the upper part of the stem; bracts mostly 3-4 cm × 1.2-2 cm, ovate; peduncles 0-3 cm, bracteoles 12-23 × 1.5-3 mm, linear-lanceolate, acuminate; pedicels 0-1 mm; outer sepals 10-14 × 3.5 mm, ovate, acuminate, covered with an indumentum of short dense hairs mixed with longer spreading hairs; inner sepals convex, glabrous; corolla 2-2.2 cm. white, weakly lobed, midpetaline bands pilose; ovary and style glabrous, style divided c. 2.5 mm above base, stigmas c.2.5 mm; capsule glabrous, seeds pubescent. [ Sa’ad 1967: 164; Austin and Ghazanfar 1979: 20, 21(plate); Breckle and Rafiqpoor 2010: 417 (photo)]

Distribution.

Afghanistan (Grey-Wilson & Hewer 1025, 1073; Hedge & Wendelbo 4283, 5107; Lamond 1902, 2534; Rechinger 16974, 32408); Pakistan (Lowndes 688).