Borzicactus sepium subsp. websterianus Borzicactus sepium subsp. websterianus (Backeb.) Lodé in Int. Cact. Advent. 31(1): 25. 2019 sec. POWO 2017+1 wfo-0001302890≡Borzicactus websterianus Backeb. in Blätt. Kakteenf. 1937(11): 2. 1937 syn. sec. ??? wfo-00005694691. POWO 2017+: Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. – http://www.plantsoftheworldonline.org.Content