Borzicactus haynei var. hystrix (Rauh & Backeb.) Donald in Natl. Cact. Succ. J. 25: 72. 1970 Borzicactus haynei var. hystrix (Rauh & Backeb.) Donald in Natl. Cact. Succ. J. 25: 72. 1970is new combination for Matucana hystrix Rauh & Backeb., Descr. Cact. Nov. 1: 19. 1957 ["1956"]Taxon for this nameBorzicactus haynei var. hystrix (Rauh & Backeb.) Donald