A grass that forms a more or less circular, compact bunch.

multi-stemmed (caespitose) life form of grasses characterized by clumps of erect shoots that slowly spread horizontally by tillers, generally creating distinct individual plants spaced across the ground; often applied to sedges and other graminoids with similar life forms.

Any grass of the Poaceae family that grows in clumps or tufts may be called bunch grass. As perennial plants, they live more than one season. With long roots that may reach two metres into the soil, bunch grasses can find water where other plants wither.