Vigorous slender root-climbing liane or hemi-epiphyte. Shoot system well differentiated into adherent climbing shoots and free lateral flowering branches; eocaul and seedling not observed. LEAVES pale green, drying dull greyish green; petiole c. 4–8 cm long, to c. 2 cm wide, lamina-like, c. ? the length of to equalling the blade, distally truncate to strongly auriculate, rarely rounded; blade c. 6–12 × 1.2–3.5 cm, narrowly elliptic to (ob)lanceolate, tip tapering to a point but hardly acuminate, base rounded; primary lateral veins diverging at c. 30°, intramarginal veins 2–5 on each side of the midrib, the inner ones arising about midway along its length. INFLORESCENCE solitary or occasionally clustered (to three together), usually lateral on a (sometimes sympodially branched) short shoot in distal leaf axils and subtended by cataphylls, the last and longest of these c. 3 cm long, rarely terminal on a leafy shoot; peduncle to c. 9 cm long, mostly rather robust, gradually increasing in thickness distally, purple-black. Spathe to c. 4 × 1.2 cm, ? to c. 4/5 the length of the spadix, reflexed, oblong-ovate to oblong-lanceolate, pale green to purplish brown. Spadix sessile, 2–4 cm × 3–4 mm, usually more than six times as long as thick, cylindric to somewhat tapering, blunt tipped, yellow. Flowers c. 1.1 mm diam, with 6 free tepals and 6 stamens; INFRUCTESCENCE: fruit to 2 cm × 9 mm, ovoid, ripening through yellow to deep red; seeds not observed.