DD. Joints of rachis and pedicels of upper spikelets clavate or trumpet-shaped and tips cupular with toothed margins.    From Wordnik.com.  [A Handbook of Some South Indian Grasses] Reference

The spikes are very short at the ends of very fine branches, solitary, binate or fascicled, with very fragile rachis; joints are very short, slender with cupular tips.    From Wordnik.com.  [A Handbook of Some South Indian Grasses] Reference