Primorye, Khabarovsk Muhlenbergia jonesii (Vasey) Hitchc. - northeastern California Muhlenbergia laxa Hitchc. - Veracruz Muhlenbergia lehmanniana Henrard - Costa Rica, Panama, Colombia, Venezuela. Ecuador Muhlenbergia ligularis (Hack.) Hitchc. - from Costa Rica to Argentina Muhlenbergia ligulata (E.Fourn.) Scribn. & Merr. - Mexico Muhlenbergia lindheimeri Hitchc. – Lindheimer muhly, big muhly - Texas, Coahuila Muhlenbergia longiglumis Vasey - Mexico Muhlenbergia longiligula Hitchc. - Mexico, United States (Arizona New Mexico Texas Nevada) Muhlenbergia lucida Swallen - Mexico Muhlenbergia macroura (Humb., Bonpl. & Kunth) Hitchc. - Mexico, Guatemala Muhlenbergia majalcensis P.M.Peterson - Mexico Muhlenbergia maxima Laegaard & Sánchez Vega - Peru Muhlenbergia mexicana (L.) Trin. – Mexican muhly - United States, Canada incl. Yukon Muhlenbergia michisensis Y.Herrera & P.M.Peterson - Mexico Muhlenbergia microsperma (District of Columbia.) Kunth – Littleseed muhly - United States (California Arizona Nevada Utah), Mexico, Guatemala, Colombia, Venezuela, Ecuador, Peru, Galápagos, Bolivia Muhlenbergia minutissima (Steud.) Swallen – Annual muhly - United States (Washington Oregon California Idaho Montana Wyoming Nebraska South Dakota Utah Nevada Arizona New Mexico Texas), Mexico, Guatemala Muhlenbergia monandra Alegría & Rúgolo - Peru Muhlenbergia montana (Nutt.) Hitchc. – Mountain muhly - United States (Montana Wyoming Colorado Utah Nevada Arizona California New Mexico Texas), Mexico Muhlenbergia mucronata (Kunth) Trin. - Mexico Muhlenbergia multiflora Columbus - western United States Muhlenbergia mutica (E.Fourn.) Hitchc. - Mexico Muhlenbergia nigra Hitchc. - Mexico, Costa Rica, Guatemala Muhlenbergia orophila Swallen - Mexico, Guatemala Muhlenbergia palmeri Vasey - Mexico, southern Arizona Muhlenbergia palmirensis Grignon & Lægaard - Ecuador Muhlenbergia paniculata (Nutt.) P.M.Peterson - central Canada, central + western United States, northeastern Mexico, northern Argentina Muhlenbergia pauciflora Buckley - United States (Colorado Utah Texas New Mexico Arizona California), Mexico Muhlenbergia pectinata Goodd. - Mexico, southern Arizona Muhlenbergia peruviana – Peruvian muhly - United States (Arizona New Mexico), Mesoamerica, western South America, Galápagos Muhlenbergia pilosa P.M.Peterson, Wipff & S.D.Jones - México State, Guerrero Muhlenbergia plumbea (Trin.) Hitchc. - Mexico, Guatemala Muhlenbergia polycaulis Scribn. - United States (Utah Texas New Mexico Arizona), Mexico Muhlenbergia porteri Scribn. ex Beal – Bush muhly - United States (Colorado Oklahoma Utah Nevada Texas New Mexico Arizona California), Mexico Muhlenbergia pubescens (Humb., Bonpl. & Kunth) Hitchc. - Mexico Muhlenbergia pubigluma Swallen - Mexico Muhlenbergia pungens Thurb. – Sandhill muhly - United States (Nebraska South Dakota Colorado Wyoming Arizona Utah New Mexico Texas) Muhlenbergia purpusii Mez - Mexico Muhlenbergia quadridentata (Kunth) Trin. - Mexico, Guatemala Muhlenbergia racemosa (Michx.) Britton, Sterns & Poggenb. –