| Name | Ipomopsis congesta subsp. matthewsii J. M. Porter |
| Authorship | J. M. Porter |
| Rank | Subspecies |
| Placed in | Ipomopsis congesta (Hooker) V. E. Grant |
| Citation | 2011 Phytotaxa 15: 21 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Ipomopsis congesta subsp. matthewsii J. M. Porter |
| Identification made in | [no date] (1), 2011 (1) |