Andropogon longiberbis grows in sandy or rocky soils of roadsides, dunes, sandhills, pinelands, and fields, from the southeastern United States to the Bahamas. It resembles A. tracyi, but usually differs in having more densely pubescent blades and a less slender appearance.
Andropogon longiberbis appears to hybridize with both A. virginicus var. virginicus and A. glomeratus var. pumilus.