It was first described scientifically by Émile Auguste Joseph De Wildeman in 1910, based on material collected in Zaire by, among others, Léon Auguste Edouard Joseph Pynaert, after whom the species was named.

The leaves are set on a creeping and rooting rhizome that is 0.5-1.5 cm thick.

The upper part is covered with male flowers, of which the 4-6 stamens are fused into synandria, with the thecae covering the side of the synandrium entirely as well as the larger part of the top of the synandrium.

The lower part of the spadix is covered with female flowers that are reduced to the ovary and stigma.

[2] The plant grows in wet, shady places and flowers and fruits throughout the year.