Pachycereus (A. Berger) Britton & Rose Pachycereus (A. Berger) Britton & Rose in Contr. U.S. Natl. Herb. 12: 420. 1909 sec. Hunt & al. 2006≡Cereus subg. Pachycereus A. Berger in Rep. (Annual) Missouri Bot. Gard. 16: 63. 1905 syn. sec. Bravo-Hollis 1978