Clistanthocereus fieldianus (Britton & Rose) Backeb. in Cactaceae (Berlin) 1937(1): 24. 1937 Clistanthocereus fieldianus (Britton & Rose) Backeb. in Cactaceae (Berlin) 1937(1): 24. 1937is new combination for Borzicactus fieldianus Britton & Rose, Cactaceae 4: 278. 1923Taxon for this nameClistanthocereus fieldianus (Britton & Rose) Backeb.