| Name | Gerardia purpurea subsp. parvula Pennell |
| Authorship | Pennell |
| Rank | Subspecies |
| Placed in | Gerardia purpurea Linnaeus |
| Citation | 1910 Proc. Acad. Nat. Sci. Philadelphia 62: 572 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Gerardia purpurea subsp. parvula Pennell |
| Identification made in | [no date] (1) |
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