Glabrous except for the young shoots, inflorescences and flowers with a short dense white or ochrous stellate tomentum which persists on the ovary, corolla and stamen filaments, otherwise eventually glabrescent. Leaves scattered or subopposite; lamina narrowly to broadly ovate, 10-30 by (2-)4-16 cm, shortly attenuate to truncate or slightly cordate at the base to a petiole (7-) 10-30 mm long, thin, acuminate and acute or obtuse at the apex, darker and somewhat glossy above or dull on both sides; venation pinnate with the midrib and the incurved main laterals distinct on both sides and more prominent below. Inflorescencess at the nodes, a 12-40-flowered raceme; axis 50-85 mm long; pedicels 0.3-4 mm long. Corolla in mature bud 5-merous, (40-)50-l 10 mm long, relatively slender, sometimes distinctly narrowed above a globosely or ellipsoidally inflated base, gradually widened upwards, weakly clavate and acute at the apex, mostly pink or red below and green above; tube in the open flower 40-85 mm long, more deeply slit on one side, with the lobes reflexed 3-8 mm higher, curved. Anther 3-7 mm long, obtuse, equal to or slightly longer than the free part of the filament.
Parasitic epiphyte in humid and open forests, also on cultivated trees, particularly Citrus, Ficus and Nephelium spp. Found in lowland areas of Malaysia, at elevations usually below 200 metres but occasionally to 1,050 metres.
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