Murdannia

Murdannia is a genus of annual or perennial monocotyledonous flowering plants in the family Commelinaceae.

The genus is one of the largest in the family. They are most easily distinguished from other genera in the family by their three-lobed or spear-shaped antherodes (i.e. non-functional anthers). Also it is the only genus with staminodes (i.e. non-functional stamens) opposite the petals.