Pachycereus pecten-aboriginum (Engelm. ex S.Watson) Britton & Rose in Contr. U.S. Natl. Herb. 12: 422. 1909
Pachycereus pecten-aboriginum in Contr. U.S. Natl. Herb. 12: 422. 1909
is new combination for Cereus pecten-aboriginum in Proc. Amer. Acad. Arts 21: 429. 1886
Pachycereus pecten-aboriginum in Contr. U.S. Natl. Herb. 12: 422. 1909