Hilaria belangeri is a species of grass known by the common name curly mesquite, sometimes written curlymesquite or curly-mesquite.

This grass is native to Mexico and the southwestern United States from Arizona to Texas.

[1] This grass grows in a number of southwestern habitat types, such as desert grasslands, woodlands, and shrubsteppe.

It tolerates low levels of precipitation as it typical of deserts, but not necessarily drought, during which it goes dormant.

[2] The growth of this grass is inhibited by the introduced African plant sweet resin bush (Euryops multifidus).