| Name | Penstemon pilosigulatus A. Nelson |
| Authorship | A. Nelson |
| Rank | Species |
| Placed in | Penstemon Schmidel |
| Citation | 1926 Univ. Wyoming Publ. Sci., Bot. 1: 130 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Penstemon pilosigulatus A. Nelson |
| Identification made in | [no date] (2) |
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