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 first glume is ovate-lanceolate, acute and hyaline, 1-nerved.
The second glume is equal to or shorter than the fourth, 5- to 7-nerved.
The fourth glume is coriaceous, lanceolate, bisexual or female.
The palea is as long as the glume, 2-toothed or not at the apex.
The first glume is concave, 3- to 5-nerved (rarely 3- to 7-nerved).
The margins of this glume are membranous and somewhat scaberulous.
The fourth glume is similar to the third but smaller and male.
The third glume is chartaceous to sub-coriaceous and paleate.