Convolvulus asyrensis Kotschy, Sitzungsber. Kaiserl. Akad. Wiss., Math.-Naturwiss. Cl., 52: 260, pl. 5. 1866. (Kotschy 1866: 260).

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 : 189-190

183. Convolvulus asyrensis Kotschy, Sitzungsber. Kaiserl. Akad. Wiss., Math.-Naturwiss. Cl., 52: 260, pl. 5. 1866. (Kotschy 1866: 260). Figure 23, t. 34-43

Convolvulus cephalopodus subsp. abhansis Alfarhan, Bot. J. Linn. Soc. 106; 262. 1991. ( Alfarhan 1991: 262). Type. SAUDI ARABIA, Asir, Nasher H-20 (holotype E00285433!).

Type.

SAUDI ARABIA, Asir, coll. unknown (holotype W!).

Description.

Cushion-like perennial from a woody rootstock with decumbent to ascending stems up to 75 cm long, plant densely white-tomentellous. Basal leaves petiolate, 0.3-2 × (0.1-)0.4-0.8 cm, broadly oblanceolate, acute, base cuneate, petiole up to 2 cm long; stem leaves sessile, 2-5 × 0.5-0.8 cm, similar in shape, diminishing in size upwards and merging into bracts. Inflorescence of sessile axillary clusters towards the branch tips, raceme-like; bracteoles 3 × 2 mm, elliptic, acute; outer sepals 7 × 2 mm, oblong-lanceolate, acute, pilose; inner sepals narrower (c 1 mm wide) and slightly shorter, the margins membranous; corolla 1.6-2 cm, pink or white, undulate, midpetaline bands thinly pilose; ovary comose; style glabrous; capsule comose, seeds glabrous (or puberulent fide R.R.Mill). [ Sa’ad 1967: 150; Collenette 1999: 226 (photo)]

Distribution.

Endemic to Saudi Arabia: Asir region (Collenette 1686, 4159, 6815).

Notes.

Distinguished by the cushion habit, sessile heads and usually small leaves.