Leaves opposite; lamina up to 8·5 x 4 cm., subcoriaceous, oblong-elliptic, almost glabrous when mature, apex rounded or acuminate, base obtuse or rounded; lateral nerves 6–7 pairs, rather prominent beneath; reticulation prominent above; petiole up to 5 mm. long forming a curved spine when the plant is scandent.
Lower receptacle 4–7 mm. long, glandular; upper receptacle 4–6 x 3–4·5 mm., basal part (surrounding the disk) subglobose, upper part campanulate-infundibuliform, slightly constricted between the two parts, densely glandular but otherwise nearly glabrous.
Fruit 5-winged, c. 3 x 2–2·5 cm., elliptic or ovate-elliptic or broadly elliptic in outline, glabrous, somewhat glutinous, apical peg c. 0·5 mm. long, stipe 2–3 mm. long, wings up to 9 mm. broad.
Inflorescences of lateral or terminal spikes up to c. 10 cm. long; rhachis with dense macroscopic glands; bracts 3 x 1 mm., narrowly elliptic, with stalked glands, caducous.
Shrub up to 10 m. high, sometimes scandent; branchlets pale or reddish, pubescent when young but soon glabrescent.
Stamen-filaments (6)18–19 mm. long; anthers 1·8 mm. long.
Disk 2·5 mm. in diam., with pilose margin not free.
Flowers white (fide Chase) or pinkish, 5-merous.
Petals (4)9 x 2–2·5 mm., unguiculate, pilose.
Sepals 2·5 x 2 mm., triangular.
Style (6)20 mm. long.