| Name | Pachycereus pecten-aboriginum (Engelmann ex S. Watson) Britton & Rose |
| Authorship | (Engelmann ex S. Watson) Britton & Rose |
| Rank | Species |
| Placed in | Pachycereus |
| Citation | 1909. (21 Jul 1909) Contr. U.S. Natl. Herb. 12(10): 422 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Pachycereus pecten-aboriginum (Engelmann ex S. Watson) Britton & Rose |
| Identification made in | [no date] (9) |
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