Glabrous. Leaves opposite; lamina narrowly ovate to ovate, (4-)6-10(-15) by (1.5-) 2-4.5(-7) cm, truncate at the base to a distinct petiole (6-)10-18 mm long, acuminate and acute at the apex, dull on both sides but darker above; venation pinnate with the midrib distinct above and raised below and the main laterals obscure. Inflorescences at the nodes; axis (5-)6-8 mm long, 5-8 mm wide; involucral bracts in 5-8 pairs, the longest inner ones narrowly spathulate, (20-)25-40(-50) mm long, remaining appressed after anthesis, red; flowers in 3 or 4 pairs of sessile triads, all with pedicels c. 0.5 mm long. Corolla in mature bud 6-merous, (30-)40-60 mm long, slender, very slightly inflated at the base, obtuse at the apex, yellow, pink or green, sometimes paler above; tube in the open flower (15-)20-30 mm long and the lobes reflexed 8-20 mm higher. Anther 4-7.5 mm long; free part of the filament 10-18(-22) mm long. Fig. 31f.
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