Leaves alternate, sometimes the uppermost opposite; petiole (4)6–15(20) mm long; lamina (2)2.5–6(9) x (1)1.5–3.5(4.5) cm, broadly ovate to broadly lanceolate, acute to ± acuminate or sometimes obtuse at the apex, never emarginate, broadly cuneate to rounded at the base, dark green and papery when dry, sometimes obscurely bright pellucid-punctate, glabrous on both surfaces, ciliate towards the apex, 3–5(7)-nerved from the base; midrib prominent below, lateral venation scarcely visible or absent.
Inflorescence spikes solitary, terminal or rarely the uppermost axillary, greenish; rhachis (2.5)3.2–7.0(10) cm long, slender and pitted; peduncle (1.1)2–3(6) cm long, slender.
Stems stoloniferous in the lower part and rooting at the lower nodes; branches slender, narrowly winged, ascending.
Fruit c. 0.1 cm spheric-ellipsoid, erect, brown, covered with viscous glands, stigma subapical.
A somewhat succulent glabrous perennial herb up to 30(50) cm tall.
Bracts 0.3–0.5 mm in diameter, circular, glandular-punctate.
A delicate herb, more or less erect; epiphytic.
Ovary ovoid, sessile; stigma subapical.