Echinocereus roemeri (Muehlenpf.) Rydb. in Bull. Torrey Bot. Club 33: 146. 1906
Echinocereus roemeri in Bull. Torrey Bot. Club 33: 146. 1906
is new combination for Cereus roemeri in Allg. Gartenzeitung 16: 19. 1848
Echinocereus roemeri in Bull. Torrey Bot. Club 33: 146. 1906
Taxon for this name