It is a medium size evergreen shrub about 90–120 cm (35–47 in) tall.
Leaves are dark green, broad, ribbed and elliptic.
The flowering period extends from June through August.
[citation needed] As of February 2024[update], Plants of the World Online accepted two species:[1] The species is native to the island of Borneo.
[1] This species is typical of the shaded mountain forests.