Ligules 0.3-0.8(1.1) mm. Inflorescence units usually with 2-5
rames; rames usually concealed at maturity.
Andropogon gyrans var. gyrans generally grows in dry, sandy soil
of roadsides, embankments, fields, and pine or oak woods, occasionally in moister
soil. Its range extends south from the United States to the Caribbean and Central
America. Plants from Florida and Mississippi do not have inflated sheaths.