Convolvulus schulzei O'Donell , Lilloa 26: 360, f. 3. 1953. ( O'Donell 1953: 360).

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 : 88

47. Convolvulus schulzei O'Donell, Lilloa 26: 360, f. 3. 1953. ( O'Donell 1953: 360).

Type.

ARGENTINA, Chaco, Schulz 3556 (holotype LIL!).

Description.

Finely pubescent trailing or twining herb from a thick rootstock, stems up to 1 m long. Leaves petiolate, 1-5 × 0.5-2 cm, ovate-deltoid, auriculate, apex obtuse and mucronate, margin weakly crenate, base cordate; petioles 3-13 mm. Flowers 1-4 in axillary, pedunculate cymes; peduncles 1-3 (-8.5) cm; bracteoles 1.5-2.5 mm, narrowly ovate; pedicels 5-15 mm; outer sepals 4-6 × 4-5 mm, broadly elliptic to obovate, obtuse, inner sepals truncate; corolla 0.7-0.8 cm long, pale pink, shallowly lobed, midpetaline bands pilose in the upper half terminating in small teeth; ovary glabrous, acuminate; style glabrous, divided 3.5-4 mm above base; stigmas 1.5 mm. Capsule glabrous; seeds strongly tuberculate. [ O’Donell 1959: 291]

Distribution.

Endemic to Argentina: Corrientes and Chaco (Pedersen 4418).

Notes.

A local endemic with a small corolla growing on sand deposits in river valleys.