Herbs, stoloniferous, forming dense colonies. Petiole 20-30 cm, proximal half sheathing; leaf blade glaucous abaxially, dark green adaxially, elliptic or oblong-lanceolate, 16-17 × 5.5-7 cm, both surfaces densely and minutely impressed punctate, base rounded or obtuse, apex acuminate; primary veins 8-10 per side, adaxially always raised toward midrib; secondary and tertiary veins arising mostly from midrib. Peduncle shorter than petioles, ca. 13 cm. Spathe convolute, pale green or white, ca. 7 cm; proximal part elliptic, ca. 2.5 × 0.6 cm, persistent; distal part convolute, horn-shaped; limb caducous. Spadix ca. 5 cm; female zone adnate to spathe, ca. 2.5 cm × 4-5 mm, attenuate toward apex; pistil oblong, ca. 1 mm, 1-loculed, with 2 parietal placentae; ovules numerous, anatropous, obovoid, with longitudinal striations; funicle long and slender, carried on placentae in 2 ranks; distal sterile zone clavate, ca. 13 × 5 mm, attenuate toward base, apex obtuse; staminodes cylindric; male zone cylindric, ca. 15 × 4 mm; fertile stamens with anthers subcuneate, dehiscing by a terminal pore. Fl. Aug-Oct.
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