| Name | Phlox speciosa subsp. lignosa Brand |
| Authorship | Brand |
| Rank | Subspecies |
| Placed in | Phlox speciosa Pursh |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Phlox speciosa subsp. lignosa Brand |
| Identification made in | [no date] (13) |
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