herbs, with root-climbing or shortly creeping stems. Leaves numerous, leaf-form
variable, petiolate. Inflorescence 1-several, peduncle shorter than petiole.
Spathe constricted, tube convolute, persistent, limb cymbiform, erect to
spreading. Spadix sessile, much shorter
than spathe, female zone cylindric to conoid, sterile zone constricted, male zone clavate to cylindric. Flowers
unisexual. Male flowers : stamens 3-4,
connate into synandrium, anthers linear, slits short. Female flowers : ovary
1-3-locular, ovules 1-2 per locule, anatropous, stylar region broad, stigma
discoid, or 2-lobed. Seeds shiny, ovoid to ellipsoid.