Parahellenia N.H.Xia, Juan Chen, L.Y.Zeng & S.Jin Zeng genus accepted

Chamaecostus C.D.Specht & D.W.Stev. genus accepted

Costus L. genus accepted

Dimerocostus Kuntze genus accepted

Monocostus K.Schum. genus accepted

Paracostus C.D.Specht genus accepted

Tapeinochilos Miq. genus accepted

Hellenia Retz. genus accepted