Bouteloua radicosa
Bouteloua radicosa, colloquially known as purple grama, is a grass species in the grama genus native to the southwestern United States and northern Mexico.
Description
Purple grama is a perennial grass that grows to tall, with a dense rhizomatous base. It bears inflorescences in panicles that are long and usually have seven to twelve branches. Branches are to long and bear eight to eleven spikelets. Each spikelet bears two florets. The lower floret has a three awned lemma.B. radicosa may hybridize with Bouteloua repens and Bouteloua williamsii, which could contribute to its apparent diversity.