First glume of the sessile spikelet translucent, bicuspidate at the tip and with smooth margins.    From Wordnik.com.  [A Handbook of Some South Indian Grasses] Reference

The third and the fourth glumes are chartaceous, narrowly lanceolate, 3-nerved, bicuspidate and awned below the tip; awns are capillary, straight; the callus is bearded and articulate at the base.    From Wordnik.com.  [A Handbook of Some South Indian Grasses] Reference