Palea distinctly toothed at the apex, making it almost three-lobed and very characteristic; with awn-point; five ribs, serrulate.
Besides, the sterile fronds of the latter have serrulate segments.
Serrulata means saw-bearing, so named from the serrulate character of the gills.
Broadest at the base, with lanceolate, serrulate divisions united by a broad wing.
In some other plants the edges are serrulate, crenulate, etc.
The glumes may remain attached: the outer has a serrulate keel, and often a violet hue.