Plant high creeping epiphyte, with clasping roots from the nodes. In the juvenile phase, stem with internodes 2.2-8.5 cm long, 0.2-0.8 cm in diameter; cataphyll 8.4-14 cm long, 1.0-2.8 cm wide, triangular, greenish-white (when fresh), falling. Leaf with blade 13.5-23.5 cm long, 5-11 cm in diameter, sagittate to elongate ovate, with apex acute, apiculate; basal lobes short, 0.4-4.3 cm long. Petiole 10-13 cm long, 0.1-0.3 cm in diameter. In the adult phase, stem with internodes 6.7-20.4 cm long, 0.4-1.2 cm in diameter, the outer layer of the cortex on the stem becoming detached. Leaves with blade 18.3-38 cm long, 10.3-19.1 cm wide, coriaceous, ovate, oblong, with apex acute to rounded, apiculate at the extreme; base deeply cordate , with basal lobes 1.5-7.0 cm long, close (almost never imbricate), forming a parabolic sinus, lobes 0.17-0.20 the length of the blade; primary lateral veins numerous, subequal, crowded, often 3-5 pairs slightly more evident than the rest, with an intramarginal vein which runs all the way round the blade very close to the margin. Petiole semiterete, slightly flattened adaxially, 11.9-28.5 cm long, 0.2-0.5 cm in diameter, 0.6-0.7 the length of the blade; sheath 3-9 cm long, evident when subtending an inflorescence, 0.2-0.3 the length of the petiole. INFLORESCENCE: Peduncle 7.3-13.5 cm long, 0.3-0.6 cm in diameter. Spathe 6-10 cm long, 1.9-4.0 cm wide, convolute, with true constriction in the middle of the blade, externally reddish brown, internally ivory-white (when fresh). One inflorescence per axil. Spadix with the apical zone male, fertile, 2.0-5.2 cm long, 0.4-1.0 cm wide, pale pink (when fresh); intermediate sterile male zone 1.2-1.8 cm long,0.5-1.0 cm in diameter; basal female zone 1.2-2.3 cm long, 0.6-1.0 cm in diameter, greenish-yellow (when fresh), ovaries 3-4 locular.