| Name | Phlox longifolia subsp. compacta (Brand) Wherry | 
| Authorship | (Brand) Wherry | 
| Rank | Subspecies | 
| Placed in | Phlox longifolia Nuttall | 
| Holdings | 29 Specimens held in the Harvard University Herbaria identified as Phlox longifolia subsp. compacta (Brand) Wherry | 
| Identification made in | [no date] (26), 1936 (1), 1938 (2) |