Panicum flexile (Gatt.) Scribn. in Bull. Torrey Bot. Club 20(12): 476. 1893 sec. Barkworth, M. E., Capels, K., Long, S., Anderton, L. & Piep, M. (Eds.) 2003
- ≡Panicum capillare var. flexile Gatt., Tenn. Fl. [Gattinger]: 94. 1887. syn. sec. Tropicos 2013
- =Panicum capillare L., Sp. Pl. 1: 58. 1753 syn. sec. ???
- =Milium capillare (L.) Moench, Methodus: 203. 1794 syn. sec. ???
- =Panicum bobarti Lam., Encycl. 4: 748. 1798 syn. sec. ???
- =Panicum capillare var. agreste Gatt., Tennessee Fl.: 94. 1887 syn. sec. ???
- =Chasea felxilis (Gatt.) Nieuwl. in Bull. Torrey Bot. Club 20(12): 476. 1893 syn. sec. POWO 2019
- =Panicum capillare var. vulgare Scribn. in Bull. Agric. Exp. Sta. Univ. Tennessee 7(1): 44. 1894 syn. sec. ???
- =Panicum capillare var. occidentale Rydb. in Contr. U.S. Natl. Herb. 3(3): 186. 1895 syn. sec. ???
- =Panicum capillare var. brevifolium Vasey & Scribn. in Bull. Div. Agrostol., U.S.D.A. 5: 21. 1897 syn. sec. ???
- =Panicum barbipulvinatum Nash in Mem. New York Bot. Gard. 1: 21. 1900 syn. sec. ???
- =Chasea capillaris (L.) Nieuwl. in Amer. Midl. Naturalist 2: 64. 1911 syn. sec. ???
- =Leptoloma barbipulvinata (Nash) Smyth in Trans. Kansas Acad. Sci. 25: 86. 1913 syn. sec. ???
- =Leptoloma capillaris (L.) Smyth in Trans. Kansas Acad. Sci. 25: 86. 1913 syn. sec. ???
- =Milium barbipulvinatum (Nash) Lunell in Amer. Midl. Naturalist 4: 212. 1915 syn. sec. ???
- =Panicum barbipulvinatum var. hirsutipes Suksd. in Werdenda 1(3-4): 17. 1927 syn. sec. ???
- =Panicum elegantulum Suksd. in Werdenda 1(3-4): 16. 1927 syn. sec. ???
- =Panicum capillare subsp. barbipulvinatum (Nash) Tzvelev, Novosti Sist. Nizsh. Rast. 18. 1968 syn. sec. ???