A succulent climbing plant 2–several m. long; root-tubers absent; all but oldest stems slender, 2.5–4 mm. wide in dry state, 5-angled, the angles brown or ± purple, horny, sharp; older stems to 1.2 cm. wide, more obtusely angled, glabrous; nodes slightly constricted; internodes 2.5–6 cm. long, 0.4–1.3 cm. wide; tendrils simple.. Leaves ± persistent, fleshy and snapping easily when folded, elliptic to distinctly ovate-triangular, 2–9 cm. long, 1–6 cm. wide, rounded to acute at the apex, cuneate to rounded at the base, not lobed but ± coarsely dentate, glabrous, sometimes ± tuberculate (? abnormal); petiole 0.5–1.4(–4) cm. long.. Inflorescences with peduncles and secondary axes 1–2.5 cm. long; pedicels 4–8 mm. long, glabrous.. Calyx 2.2 mm. wide, entire or ± 4-angled.. Corolla-bud ovoid, 2.5 mm. long, glabrous.. Fruits ± elongate when young, later ± globose, ± 8 mm. in diameter, ± rugose-tuberculate when fresh, less obvious when dry.
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