All of them may be awned as in Chloris or only the fourth glume as in Andropogon.
In Panicum it is nearly two-thirds or less than the third glume.
The third glume is chartaceous to sub-coriaceous and paleate.
The first glume is concave, 3- to 5-nerved (rarely 3- to 7-nerved).
The second glume is membranous, 1- to 5-nerved or nerveless.
The first glume is shorter than ...