On the Confusion in the Identity of Eragrostis atrovirens, E. gangetica and E. nutans

There is a lot of confusion in the identity of Eragrostis atrovirens (Desf.) Trin. ex Steud., E. gangetica (Roxb.) Steud. and E. nutans (Retz.) Nees ex Wight & Am. resulting in many wrongly identified sheets in various herbaria and also confusing descriptions in literature. Based on detailed study this problem has now been resolved. Table given shows actual differences among the three species. Key for identification and authentic descriptions and images of spikelets and caryopses have also been provided.