Source : Webster's Revised Unabridged Dictionary (1913)

Bunch grass \Bunch" grass`\ (Bot.)
   A grass growing in bunches and affording pasture. In
   California, {Atropis tenuifolia}, {Festuca scabrella}, and
   several kinds of {Stipa} are favorite bunch grasses. In Utah,
   {Eriocoma cuspidata} is a good bunch grass.