Convolvulus natalensis Bernh.

Perennial forming prostrate or rarely almost twining annual stems from a woody taproot. Stems usually rather stout and firm, terete, up to 1 m long, covered (as are all vegetative parts, peduncles, pedicels, bracteoles and calyx) with rather short hairs which are sometimes stiff and hirsutulous, sometimes silky or ± woolly, fawn, rust-brown to silvery white, more densely so in all younger parts, at length glabrescent. Leaves linear to cordate-ovate, cordate-oblong or sometimes cordate or narrowly reniform, 10-90 mm x 7.5-50.0 mm, usually undissected with an undulate, crenate or nearly dentate or serrate to subentire margin but sometimes faintly, rarely distinctly and irregularly pinnatilobed; apex usually broadly rounded and shortly cuspidate, sometimes obtuse or acute; basal sinus, if present, broad and shallow, basal auricles often almost angular; petiole 5-20 mm long. Peduncles 1-to few-flowered, terete, short (up to 70 mm long), occasionally absent; bracteoles linear or lanceolate, 6-10 mm long, often more than 2 when inflorescence few-flowered; pedicels very short or up to 15 mm long. Calyx 10-18 mm long; sepals ovate-lanceolate, oblong, elliptic or lanceolate, ± unequal; outer ones herbaceous, sometimes subcordate at base, broader and crisped along margins; inner ones a little shorter and less pubescent to glabrous, marcescent, sometimes broadly ovate; all sepals obtuse to acute, inner usually more acute than outer ones. Corolla white, cream-coloured or white tinged with green, funnel-shaped, 20-35 mm long, 22-40 mm wide; midpetaline areas greenish, densely silky with rust-brown, fawn or silvery white hairs. Capsule subglobose, or almost ovoid, apiculate, glabrous, 8-10 mm long and wide. Seeds dark brown, glabrous, distinctly verrucose-rugose, 5-6 mm long.