102 Andropogon gerardi Poaceae. Short papery ligule. Typically hairy on the sheath and the base of the leaves.
Leaves are wide at base and taper.
Culm has bulbous red-purple knob at nodes. This is a tall grass. Stalk is somewhat flattened. Inflorescence is in threes or multiples of three. Similar species is Schizachyrium scoparium .