1. any of various grasses of many genera that grow in tufts or clumps rather than forming a sod or mat; chiefly of western United States; [syn: bunchgrass, bunch grass]
WordNet (r) 3.0 (2006):
bunchgrass
n 1: any of various grasses of many genera that grow in tufts or
clumps rather than forming a sod or mat; chiefly of western
United States [syn: bunchgrass, bunch grass]