Prosthechea baculus (Rchb. f.) W.E. Higgins in Phytologia 82(5): 376. 1998 sec. Soto-Arenas & al. 2007
- ≡Epidendrum baculus Rchb. f. in Bonplandia 4(14): 214. 1856 syn. sec. Bogarín & al. 2014
- =Epidendrum fragrans var. megalanthum Lindl. in J. Hort. Soc. London 4: 223. 1849 syn. sec. Bogarín & al. 2014
- =Epidendrum pentotis Rchb. f. in Linnaea 41: 81. 1876 syn. sec. Bogarín & al. 2014
- =Epidendrum acuminatum Sessé & Moc., Fl. Mexic. (ed. 2): 202. 1894 syn. sec. Bogarín & al. 2014
- =Epidendrum confusum Rolfe in Orchid Rev. 7: 197. 1899 syn. sec. Bogarín & al. 2014
- =Epidendrum beyrodtianum Schltr. in Orchis 9: 49, t. 4, f. 14-21. 1915 syn. sec. Bogarín & al. 2014
- =Encyclia pentotis (Rchb. f.) Dressler in Brittonia 13(3): 265. 1961 syn. sec. Bogarín & al. 2014
- =Encyclia baculus (Rchb. f.) Dressler & G.E. Pollard in Phytologia 21(7): 436. 1971 syn. sec. Soto-Arenas & al. 2007
- =Anacheilium baculus (Rchb. f.) Withner & P.A. Harding, Cattleyas & Relatives: Debatable Epidendrums: 49-51. 2004 syn. sec. Bogarín & al. 2014
- =Anacheilium confusum (Rolfe) Withner & P.A. Harding, Cattleyas & Relatives: Debatable Epidendrums: 72-73. 2004 syn. sec. Soto-Arenas & al. 2007
- =Prosthechea stevensii Archila in Revista Guatemalensis 15: 108-110. 2012 syn. sec. Solano Gómez & al. 2020