Echinocereus scheeri subsp. gentryi (Clover) N.P. Taylor in Cactaceae Consensus Init. 3: 9. 1997 sec. Hunt 2016
- ≡Echinocereus gentryi Clover in Bull. Torrey Bot. Club 65: 565. 1938 syn. sec. Guzmán & al. 2003
- =Echinocereus cucumis Werderm. in Natl. Cact. Succ. J. 1: 4. 1949 syn. sec. Blum & al. 1998
- =Echinocereus scheeri var. gentryi (Clover) N.P. Taylor in Bot. Mag. (Kew Mag.) 1: 154. 1984 syn. sec. Guzmán & al. 2003