| Name | Ipomopsis congesta subsp. crebrifolia (Nuttall) A. G. Day |
| Authorship | (Nuttall) A. G. Day |
| Rank | Subspecies |
| Placed in | Ipomopsis congesta (Hooker) V. E. Grant |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Ipomopsis congesta subsp. crebrifolia (Nuttall) A. G. Day |
| Identification made in | [no date] (4), 2017 (3) |
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