Calamagrostis rigescens (J. Presl) Scribn. in Annual Rep. Missouri Bot. Gard. 10: 37. 1899 sec. Dávila & al. 2018
- ≡Agrostis rigescens J. Presl, Reliq. Haenk. 1(4-5): 237. 1830 syn. sec. Dávila & al. 2006
- =Agrostis chamaecalamus Trin. in Mém. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6, Sci. Math., Seconde Pt. Sci. Nat. 6,4(3-4): 365. 1841 syn. sec. Dávila & al. 2006
- =Bromidium brevifolium Nees & Meyen, Gramineae: 23. 1841 syn. sec. Dávila & al. 2006
- =Bromidium rigescens (J. Presl) Nees & Meyen, Gramineae: 23. 1841 syn. sec. Dávila & al. 2006
- =Bromidium rigescens var. brevifolium Nees, Gramineae: 23. 1841 syn. sec. Dávila & al. 2006
- =Bromidium rigescens (J. Presl) Nees & Meyen var. rigescens, Gramineae: 23. 1841 syn. sec. Dávila & al. 2006
- =Bromidium spectabile Nees & Meyen, Gramineae: 24-25. 1841 syn. sec. Dávila & al. 2006
- =Bromidium spectabile var. nubigenum Nees, Gramineae: 24. 1841 syn. sec. Dávila & al. 2006
- =Bromidium spectabile Nees & Meyen var. spectabile, Gramineae: 24-25. 1841 syn. sec. Dávila & al. 2006
- =Calamagrostis jamesonii Steud., Syn. Pl. Glumac. 1: 163. 1854 syn. sec. Dávila & al. 2006
- =Deyeuxia imberbis Wedd. in Bull. Soc. Bot. France 22: 177, 180. 1875 syn. sec. Dávila & al. 2006
- =Deyeuxia phalaroides Wedd. in Bull. Soc. Bot. France 22: 177, 180. 1875 syn. sec. Dávila & al. 2006
- =Agrostis bromidioides Griseb. in Abh. Königl. Ges. Wiss. Göttingen 24: 293. 1879 syn. sec. Dávila & al. 2006
- =Calamagrostis cajatambensis Pilg. in Bot. Jahrb. Syst. 42(1): 64. 1908 syn. sec. Dávila & al. 2006
- =Calamagrostis imberbis (Wedd.) Pilg. in Bot. Jahrb. Syst. 42: 65. 1908 syn. sec. Dávila & al. 2006
- =Calamagrostis bromidioides (Griseb.) Pilg. in Feddes Repert. 45: 4. 1938 syn. sec. Dávila & al. 2006
- =Deyeuxia rigescens (J. Presl) Türpe in Lilloa 31: 134. 1962 syn. sec. Dávila & al. 2006
- =Deyeuxia cajatambensis Pilg. ex Zuloaga, Nicora, Rúgolo, Morrone, Pensiero & Ciald. in Monogr. Syst. Bot. Missouri Bot. Gard. 47: 49. 1994 syn. sec. Dávila & al. 2006