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Leaves subopposite; lamina up to 19 x 12·5 cm., membranous (at least when young), broadly elliptic, densely minutely glandular above, tomentose to densely pilose beneath, apex rounded or acuminate or apiculate, base subcordate to cordate; lateral nerves 7–10 pairs; petiole up to 8 mm. long, tomentose.
Fruit 4-winged, c. 3·5(5) x 2·5(3) cm., elliptic or elliptic-oblong in outline, apex and base truncate, velutinous, apical peg less than 1 mm, long, wings up to 10 mm. broad, stipe up to 7(10) mm. long.
Lower receptacle c. 5 x 1·5 mm., densely pilose; upper receptacle 12 x 3–6 mm., campanulate or infundibuliform, slightly constricted above the part containing the disk, pubescent.
Inflorescences of lateral spikes 4–7 cm. long, often in the axils of fallen leaves; rhachis tomentose; bracts caducous (not seen).
Petals purple, 4–5 x 1–1·5 mm., oblong-spathulate or oblong-elliptic, pubescent outside glabrous inside.
Woody climber or shrub c. 2 m. high; branchlets at first tomentose but soon glabrescent.
Stamens 8, 2-seriate with filaments 18–22 mm. long; anthers red, 1·5 x 1 mm.
Disk 2–3 mm. in diam., glabrous, pilose margin not free.
Flowers reddish-purple or salmon-red, 4-merous.
Sepals 2–2·5 x 2·5 mm., broadly triangular.
Style c. 2·6 cm. long.
