KEY TO DREPANOSTACHYUM SPECIES

Culm sheath with ring of dense hairs at base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . annulatum
Culm sheath without ring of dense hairs at base:-

   leaf sheath hairy with prominent and persistent auricles bearing spreading bristles . . . . intermedium
   leaf sheath lightly hairy or glabrous with quickly deciduous or absent auricles . . . . . . . . . . khasianum