A small or large vine, almost frutescent,-the caudex commonly 1 cm. thick, sometimes as much as 2 cm., the internodes short; petioles 6-25 cm. long, the sheath broad at the base, narrowed upward, ending 1-3 cm. below the base of the blade; blades oblong or lance-oblong, mostly 13-18 cm. long and 3-5 cm. wide, acuminate or long-acuminate, acute at the base; peduncles slender, 12-30 cm. long; spathe oblong, short-acuminate, white, about 4 cm. long, 1 cm. wide, early deciduous; spadix sessile, cylindric, obtuse, 2.5-3.5 cm. long, 5-8 mm. thick, pale green or yellow.
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