Muhlenbergia uniflora is a small species of grass, commonly called one-flowered muhly.

It is native to north eastern USA and adjoining area of Canada.

Muhlenbergia uniflora is a small perennial grass that is non-rhizomatous.

Culms (stems) tufted, 2–4 dm tall.

The one flowered spikelets are purple, arranged in open, diffuse panicles.