Convolvulus chilensis Pers., Syn. Pl. 1: 180. 1805. (Persoon 1805: 180).

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 : 86-87

44. Convolvulus chilensis Pers., Syn. Pl. 1: 180. 1805. (Persoon 1805: 180). Figure 8, t. 32-39

Convolvulus dissectus Cav., Icon. 5: 54, tab. 480(1). 1799, nom. illeg., non Convolvulus dissectus Jacq. (1767). ( Cavanilles 1799: 54). Type. CHILE, Chillán, Née s.n. (lectotype MA-475569!, sheet with corolla, designated here).

Convolvulus canescens Phil., Linnaea 33: 182. 1864. ( Philippi 1864: 182). Type. CHILE, San Felipe de Aconcagua, Landbeck s.n. (?SGO).

Convolvulus dissectus var. canescens (Phil.) Reiche, Anales Univ. Chile 120: 828. 1907. ( Reiche 1907: 828). Type. Based on Convolvulus canescens Phil.

Type.

Based on Convolvulus dissectus Cav.

Description.

Thinly to densely pubescent herb from a thick rootstock, sometimes sericeous on young parts, but more or less glabrescent; stems trailing (rarely twining), up to 2.5 m long. Leaves petiolate, 2-8 × 2-6 cm, very variable in form, usually linear or oblong with prominent elongate bifurcate basal auricles, but occasionally ovate-deltoid to suborbicular with rounded auricles, apex usually acute, margin entire or undulate, base cordate to truncate; petioles 0.5-3.5 cm. Flowers 1-2 (-3), axillary, pedunculate; peduncles 2-4 (-6.5) cm; bracteoles 2-4 mm, lanceolate; pedicels 5-10 mm; outer sepals 7-9 × 5-7 mm, elliptic, obtuse, mucronate; corolla 1.5-2.5 cm long, pink, very shallowly lobed with slightly fimbriate margins, midpetaline bands dark, pilose, terminating in a pilose mucro; ovary glabrous; style divided 6-10 mm above base, stigmas 1.5-3.5 mm, cylindrical to linear, unusually variable. Capsule glabrous; seeds rugose. [ O’Donell 1957: 161-166 (Figure 6); Hoffmann 1998: 207]

Distribution.

Endemic to central Chile from Antofagasta south to Santiago (Worth & Morrison 16236, Bridges s.n., Gardner & Knees 5652, 8467, DCI 1791). 0-1800 m.

Notes.

This polymorphic species is usually easily distinguished from all other South American species by the leaves with bifurcate auricles combined with pink corollas usually around 2-2.5 cm long. However, some specimens from Coquimbo (Simon 312 (MICH, RSA), Wagenknecht 18445 (F)) have small, suborbicular sericeous leaves and merit further study. The type location is given as Chillán, but this is almost certainly an error as the plant has never subsequently been collected so far south ( O’Donell 1957: 161).