Tuberous, very small to medium-sized herbs.
Leaves entire, sagittate-hastate, 3-5-lobed, or pedatisect. Inflorescence
solitary, peduncle shorter than petiole. Spathe constricted, tube short,
convolute, persistent, limb ovate-oblong, or
lanceolate-linear, deciduous. Spadix exserted, appendage elongate, male
and female zones remote, with neuters above female zone, sometimes below the
male zone. Stamens 1-3, anthers subsessile, anther-cells prolonged, opening by
slits or pores. Carpels forming 1-celled ovary, placentation basilar, ovules
1-2, erect, orthotropous, stigma sessile. Fruit 1-2 seeded berry, ovoid. Seeds
globose, albumen copious.