| Name | Penstemon fruticosus var. douglasii (Hooker) C. K. Schneider |
| Authorship | (Hooker) C. K. Schneider |
| Rank | Variety |
| Placed in | Penstemon fruticosus (Pursh) Greene |
| Citation | 1911 Ill. Handb. Laubholzk. 2: 615 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Penstemon fruticosus var. douglasii (Hooker) C. K. Schneider |
| Identification made in | [no date] (7) |
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