Related species: Stipa nelsonii var. dorei
Synonyms: Achnatherum nelsonii
Counties: Alpine Amador Butte Calaveras El Dorado Fresno Glenn Humboldt Inyo Lassen Madera Mariposa Mendocino Mono Modoc Nevada Placer Plumas San Bernardino San Diego Shasta Siskiyou Tehama Trinity Tulare Tuolumne