| Name | Phlox douglasii subsp. rigida (Bentham) Wherry |
| Authorship | (Bentham) Wherry |
| Rank | Subspecies |
| Placed in | Phlox douglasii Hooker |
| Holdings | 28 Specimens held in the Harvard University Herbaria identified as Phlox douglasii subsp. rigida (Bentham) Wherry |
| Identification made in | [no date] (28) |
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