| Name | Phlox diffusa subsp. scleranthifolia (Rydberg) Wherry | 
| Authorship | (Rydberg) Wherry | 
| Rank | Subspecies | 
| Placed in | Phlox diffusa Bentham | 
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Phlox diffusa subsp. scleranthifolia (Rydberg) Wherry | 
| Identification made in | [no date] (10) |