| Name | Ipomopsis spicata subsp. tridactyla (Rydberg) Wilken & R. L. Hartman |
| Authorship | (Rydberg) Wilken & R. L. Hartman |
| Rank | Subspecies |
| Placed in | Ipomopsis spicata (Nuttall) V. E. Grant |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ipomopsis spicata subsp. tridactyla (Rydberg) Wilken & R. L. Hartman |
| Identification made in | [no date] (1) |
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