Brachiaria arizonica (Scribn. & Merr.) S.T. Blake in Proc. Roy. Soc. Queensland 81: 4. 1969 sec. Dávila & al. 2006
- =Panicum fuscum var. major Vasey in Dept. Agric. Bot. Div. Bull. 8: 26. 1889 syn. sec. Dávila & al. 2006
- =Panicum fasciculatum var. majus (Vasey) Beal, Grass. N. Amer. 2: 117. 1896 syn. sec. Dávila & al. 2006
- =Panicum arizonicum Scribn. & Merr. in Circ. Div. Agrostol. U.S.D.A. 32: 2-3. 1901 syn. sec. Dávila & al. 2006
- =Panicum arizonicum Scribn. & Merr. var. arizonicum in Circ. Div. Agrostol. U.S.D.A. 32: 2-3. 1901 syn. sec. Dávila & al. 2006
- =Panicum arizonicum var. laeviglume Scribn. & Merr. in Circ. Div. Agrostol. U.S.D.A. 32: 3. 1901 syn. sec. Dávila & al. 2006
- =Panicum arizonicum var. major (Vasey) Scribn. & Merr. in Circ. Div. Agrostol. U.S.D.A. 32: 3-4. 1901 syn. sec. Dávila & al. 2006
- =Panicum arizonicum var. tenue Scribn. & Merr. in Circ. Div. Agrostol. U.S.D.A. 32: 3. 1901 syn. sec. Dávila & al. 2006
- =Panicum fasciculatum var. dissitiflorum Vasey ex Scribn. & Merr. in Bull. Div. Agrostol., U.S.D.A. 32: 2. 1901 syn. sec. Dávila & al. 2006
- =Brachiaria arizonica var. laeviglumis (Scribn. & Merr.) Beetle in Phytologia 52(1): 13. 1982 syn. sec. Dávila & al. 2006
- =Brachiaria arizonica var. major (Vasey) Beetle in Phytologia 52(1): 12. 1982 syn. sec. Dávila & al. 2006
- =Brachiaria arizonica var. tenuis (Scribn. & Merr.) Beetle in Phytologia 52(1): 13. 1982 syn. sec. Dávila & al. 2006