Plant pendulous, glabrous, glaucous. Internodes strongly flattened and double-edged, dilated towards apex and up to 7 mm wide. Leaves lanceolate, acute or obtuse; lamina 6-20 cm long, 5-20 mm wide, dull both sides, attenuate at base but without distinct petiole; venation distinct both sides. Inflorescence axis 3-4 cm long, bearing 3-6 pairs of triads on peduncles 2-3 mm long; all flowers sessile; bracts 2 mm long, rounded at apex, overlapping. Calyx entire, 1-1.5 mm long. Corolla in mature bud 20-25 mm long, red or yellow below, green above; petals united in lower 0.5 mm. Anthers 2-3 mm long, equal to free part of filament. Fruit ovoid, c. 10 mm long.
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