Bouteloua curtipendula is a perennial C4 grass (Wilson and Hartnet 1998) 30-100 cm tall, erect, from short rhizomes, sheaths finely hairy near top, ligule of short-hairs.
Leaves alternate, 10-30 cm long, 0.2-0.7 cm wide, bristly-hairy near ends, rough textured above (scabrous);
Flower spikelets widely spaced along spike, 0.7-1 cm long, first glume much shorter than keeled second glume, lemma 3-awned, very rough-textured; inflorescence spikes 8-20 cm long, one-sided.
Wetland status: NL.
Frequency in NYC: Rare (NYS endangered).
Habitat: Dry woods, prairies, soil pH 5.5-8.5, .moderately tolerant of drought, intolerant of fire, salt and shade (USDA, NRCS 2010).