The following species are recognised in the genusMannia:Mannia androgyna A. EvansMannia californica L.C. WheelerMannia controversa D.B. SchillMannia fragransFrye & L. ClarkMannia gracilis D.B. Schill & D.G. LongMannia hegewaldii Bischl.Mannia paradoxa R.M. Schust.Mannia perssoniiUdar & V. ChandraMannia pilosa Frye & L. ClarkMannia sibirica Frye & L. ClarkMannia triandra Grolle