| 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) | 
