Glabrous except for the inflorescence and flowers sparsely tomentose. Leaves quaternate; lamina oblong to obovate, 1-6 by 0.8-2 cm, truncate or rounded at the base, sessile, rounded at the apex, glossy above, dull below; venation pinnate with the midrib and the main laterals faintly visible above and the midrib prominent below. Inflorescences at the nodes, pedunculate mostly 4-rayed umbels of triads usually with all flowers pedicellate but sometimes with the central flowers and very rarely the lateral flowers sessile; peduncle 7-30 mm long; rays 1-4 mm long; pedicels 0-2 mm long. Corolla in mature bud 4-merous, 25-38 mm long, gradually inflated to 3/4 of its length, thence attenuate to an acute apex, red orange or yellow below, sometimes shading to green above. Anther 2-4 mm long, longer than the free part of the filament.
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