| Name | Pilosocereus royenii (Linnaeus) Byles & G. D. Rowley |
| Authorship | (Linnaeus) Byles & G. D. Rowley |
| Rank | Species |
| Placed in | Pilosocereus |
| GUID | urn:lsid:ipni.org:names:196739-2 |
| Citation | 1957 Cact. Succ. J. Gr. Brit. 19: 67 |
| Holdings | 53 Specimens held in the Harvard University Herbaria identified as Pilosocereus royenii (Linnaeus) Byles & G. D. Rowley |
| Identification made in | [no date] (49), 2018 (4) |
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