Corolla white, ?turning yellow; tube sometimes greenish, slender, 1.4–2 cm long, up to 4 mm wide at the throat, subcylindrical to narrowly funnel-shaped, at least above, glabrous to hispidulous outside, densely shortly pubescent inside; lobes 5, 9–17 × 3.5–6.5 mm, oblong to obovate, ± obtuse, glabrous or nearly so.
Small shrub or subshrub 15–60(100) cm tall, with decumbent or erect divaricate shoots from a long many-headed rhizome; young stems usually dark red-brown, ± densely shortly strigose-pubescent, at length glabrescent, sticky.
Fruit 1–1.5 × 0.7–1.25 cm, broadly ellipsoid or ovoid, crowned with the persistent calyx, the walls scarious, longitudinally striate, glabrous or hispid, smooth, irregularly transversely dehiscent.
Seeds c. 4 per locule, densely immersed in the fleshy placenta, 4–5 × 2.5–3 mm, ovate or elliptic, dorsiventrally flattened; testa thick, dark brown, strongly foveolate-reticulate.
Ovary 2-locular; placentas 2, parietal; style c. 2 cm long; pollen presenter exserted, bifid, but lobes not spreading, 1–1.5 mm long.
Calyx tube 2 mm long, pubescent; limb-tube 2 mm long, pubescent; lobes 5, 2–4 × 1.2 mm, narrowly triangular to lanceolate.
Anthers 6 mm long, about half-exserted from the throat.
Flowers terminal, solitary; pedicels very short.