| Name | Mentzelia pachyrhiza I. M. Johnston |
| Authorship | I. M. Johnston |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Mentzelia Linnaeus |
| GUID | urn:lsid:ipni.org:names:545455-1 |
| Citation | 1940 J. Arnold Arbor. 21: 71 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Mentzelia pachyrhiza I. M. Johnston |
| Identification made in | [no date] (2) |
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