| Name | Mentzelia congesta Torrey & A. Gray |
| Authorship | Torrey & A. Gray |
| Rank | Species |
| Placed in | Mentzelia Linnaeus |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Mentzelia congesta Torrey & A. Gray |
| Identification made in | [no date] (1) |