[7] It blooms from late summer to early fall, producing branched clusters (panicles) of spikelets.

The spikelets are golden-brown during the blooming period, and each contain one perfect floret that has three large, showy yellow stamens and two feather-like stigmas.

[7] Sorghastrum nutans is prominent in the tallgrass prairie ecosystem and the northern, central, and Flint Hills tall grassland ecoregions, along with the grasses big bluestem (Andropogon gerardi), little bluestem (Schizachyrium scoparium) and switchgrass (Panicum virgatum).

Indiangrass is adapted in the United States from the southern border to Canada and from the eastern seaboard to Montana, Wyoming and Utah.

[11] The USDA Natural Resources Conservation Service lists the following uses for Sorghastrum nutans: erosion control, livestock, pollinators, restoration, and wildlife.