Densely red-brown lanate-hairy on the young vegetative parts, inflorescences and flowers, later glabrescent on the stems and leaf upper surfaces. Leaves opposite or scattered; lamina narrowly ovate, mostly 5-16 cm long, mostly 2-5 cm wide, truncate or slightly cordate at the base to a petiole 5-25(-35) mm long, acuminate and broadly acute at the apex, glossy above, dull below; venation pinnate with the midrib and main laterals distinct above and prominent below. Inflorescencess at the nodes, a 3-10-flow-ered spike; axis (4-)6-30(-60) mm long; bracts foliaceous, 3—10(—15) mm long, appressed to the ovary. Corolla in mature bud 5-merous, 28-55 mm long, globose at the base, uniformly widened above, weakly clavate and obtuse at the apex, mostly pink or red beneath the indumentum; tube in the open flower 15-30 mm long, more deeply split on one side, with the lobes reflexed 6-10 mm higher, curved. Anther 3-4 mm long, acute, slightly shorter than the free part of the filament. Fig. 23c, d.
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