Shrubs or climbers up to 8 m.; stems erect, curved or scandent, ± succulent, thorned, emerging from a succulent lumpy trunk up to 2.5 m. wide.. Leaves caducous, grey-green; blade entire or shallowly 3-lobed, subtri-angular to rhomboid, or hastate, base rounded, top acute, 0,3–0.7 by 0.15–0.9 cm., 3(–5)-nerved from base; margin entire; petiole 0.1–0.15 cm.. Gland at blade base 1, situated medianly on the shortly peltate blade-base; no other glands present.. Stipules narrowly triangular, acute, ± 0.5 mm.. Thorns in the axils of leaves or leaf-scars, 0.5–8 cm., tip woody, acute; when young bearing half-way 2 subopposite bracts ± 0.5 mm.. Inflorescences in the axils of much reduced leaves arranged on short-shoots 0.2–2(–5) cm., situated terminally on the branches in the axils of thorns or rarely on the thorns themselves, peduncled up to 1.5 mm.; 1–5-flowered in ♂, 1–3-fiowered in ♀; tendrils 0.. Male flowers tubiform to infundibuliform, including the 6–10(–14) mm. long stipe 19–30(–35) mm.; hypanthium tubiform, 5–12 by 2–5 mm.; calyx-tube 0, sepals lanceolate, obtuse, 6–9 mm., entire; petals obovate to ovate or oblong-lanceolate, obtuse or subacute, 4–7.5 mm., 3–5-nerved, denticulate; filaments 2–7 mm., connate for 0–1(–2) mm., inserted up to 7 mm. above the base of the hypanthium; anthers 4–8 mm., obtuse or acute; septa 0(–1) mm.; corona 0; disk glands 0.5–2 mm., sometimes ± connate.. Female flowers ± campanulate, including the 1–2 mm. long stipe (6–)8–12 mm.; hypanthium cup-shaped, (1–)1.5–4 by 2.5–4 mm.; calyx-tube 0, sepals lanceolate, obtuse, 5–8 mm., denticulate; petals oblong-lanceolate or lanceolate, subacute, (1.5–)2–3 mm., 1-nerved, subserrulate; staminodes 1.5–3.5 mm.; septa 0; corona 0; disk glands 0.2–1 mm.; gyno-phore ± 1 mm.; ovary ovoid-ellipsoid, 2.5–4.5 mm., ovules 6-30; styles connate for 0.5–1.5 mm., style-arms 1–1.5 mm.; stigmas reniform, papillate, each ± 2 mm. in diameter.. Fruits 1 per inflorescence, up to 10 on a short-shoot, subglobose to ovoid-ellipsoid, excluding the 1–3 mm. long gynophore 1.2–2.8 by 1–2 cm.; pericarp coriaceous.. Seeds 3–25 per capsule (2–10 ovules per placenta), broadly ovoid, ± 7 mm.
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