Glabrous. Leaves opposite; lamina elliptic, 4.5-6 by 2.5-3 cm, cuneate at the base to a winged petiole 8-12 mm long, rounded or obtuse at the apex, darker above than below, dull on both sides; venation pinnate, obscure above and distinct below. Inflorescencess few in hollows at the nodes, arising through a periderm layer which remains as a basal involucre, a condensed spike of 1 (rarely 2) sessile triads with all flowers sessile; axis c. 1 mm long. Corolla in mature bud 6-merous, c. 13 mm long, weakly inflated at the base, slender in the middle, yellow; petals in the open flower coherent in the lower part. Other flower characters unknown.
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