Convolvulus supinus Coss. & Kralik, Bull. Soc. Bot. France 4: 400. 1857. (Cosson and Kralik 1857: 400).

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 : 115-116

85. Convolvulus supinus Coss. & Kralik, Bull. Soc. Bot. France 4: 400. 1857. (Cosson and Kralik 1857: 400). Figure 11, t. 40-48

Type.

ALGERIA, Oran, Bourgeau 60 (lectotype P00417713!, designated by Sa’ad 1967: 202); isolectotypes C, E!, GOET, K!, P!, W!).

Description.

Perennial herb from a deep, somewhat woody rootstock, usually branched at base with trailing herbaceous stems to c. 40 cm long, vegetative parts all (thinly to) densely lanate. Leaves shortly petiolate, 0.6-1.6 × 0.3-0.8 cm, oblong to oblong-elliptic or oblong-ovate, obtuse, acute or shortly mucronate, entire, abruptly narrowed to a truncate or cordate base; petioles 0-1 mm. Flowers 1-3 in shortly pedunculate axillary dichasial cymes, the inflorescence as a whole appearing racemose; peduncles 0.5-3 cm; bracteoles 5-9 × 0.5-1 mm, linear; pedicels 0-3(-8) mm, outer sepals 8-11 × 3 mm. oblong-elliptic, acute; inner sepals ovate, c. 4 mm wide, membranous; corolla 1.8-2.8 cm long, yellow or creamy-yellow, unlobed, midpetaline bands pilose; filaments glandular below; ovary glabrous or with a few hairs; style glabrous, divided 6-10 mm above ovary, stigmas 3-4 mm. Capsule glabrous or with a few hairs; seeds glabrous, tuberculate. [ Sa’ad 1967: 202; Siddiqi 1977: 15 (Figure 6); Carine and Robba 2010: 14]

Notes.

There is much variation in indumentum and two varieties can be recognised: