|🌵 Author(s)||Joseph Nelson RoseNathaniel Lord Britton|
|🌵 Basionym||Cereus subgen. Pachycereus (1905)|
|🌵 Basionym author(s)||Alwin Berger|
|🌵 Type||Pachycereus pringlei|
Greek pachys ‘thick, massive’ + Cereus, the name of a genus of columnar cacti and a designation for columnar cacti in general. It seems obvious that the name refers to the thick stems, but Berger does not mention this characteristic. He does state that the species of this genus are “gigantic”, so the name most likely refers to the overall size.