| Name | Phlox longifolia subsp. humilis (Douglas ex Hooker) Wherry |
| Authorship | (Douglas ex Hooker) Wherry |
| Rank | Subspecies |
| Placed in | Phlox longifolia Nuttall |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Phlox longifolia subsp. humilis (Douglas ex Hooker) Wherry |
| Identification made in | [no date] (23) |
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