Convolvulus montanus Ooststr., Meded. Bot. Mus. Herb. Rijksuniv. Utrecht 7, 30: 199, f. 1, 3. 1933. (Ooststroom 1933: 199).

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 : 91

50. Convolvulus montanus Ooststr., Meded. Bot. Mus. Herb. Rijksuniv. Utrecht 7, 30: 199, f. 1, 3. 1933. (Ooststroom 1933: 199). Figure 9, t. 15-21

Type.

PERU, Junin, Huancayo, Killip & Smith 22018 (holotype F!; isotypes BM001035802!, MA!, US).

Description.

Herb apparently from a deep rootstock, glabrous or with a few scattered hairs on vegetative parts, stems trailing, 5-15 cm long. Leaves petiolate, 0.6-1.6 × 0.5-1.3 cm, ovate, apex more or less rounded, margin strongly crenate, base truncate; petioles 3-8 mm. Flowers 1(-2), axillary, pedunculate; peduncles 1.2-1.6 cm; bracteoles 2.5-4 mm, oblong; pedicels 2-5 mm; outer sepals 6-8 × 4.5-6 mm, obovate-elliptic, concave, scarious, emarginate, inner sepals similar emarginated or mucronulate; corolla 1.2-1.5 cm long, white to pale pink with a dark centre, deeply lobed, midpetaline bands glabrous terminating in a small tooth; ovary glabrous, style divided 5-7 mm above base, stigmas c. 2 mm. Capsule glabrous; seeds smooth, glabrous. O’Donell 1959: 288-290 (Figure 47).

Distribution.

Peru: Junin, Cusco (Stafford 220); Bolivia: La Paz ( Gütte 141); Argentina: Mendoza, Buenos Aires (Melis et al. 427). Unusually disjunct geographically and altitudinally: 3300-3500 in Peru and Bolivia but below 2000 m in Argentina.

Notes.

A distinctive nearly glabrous species with small ovate, basally truncate, crenate leaves.