| Name | Penstemon spectabilis var. subviscosus (D. D. Keck) McMinn |
| Authorship | (D. D. Keck) McMinn |
| Rank | Variety |
| Placed in | Penstemon spectabilis Thurber ex A. Gray |
| Citation | 1939 Man. Calif. Shrubs 513 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Penstemon spectabilis var. subviscosus (D. D. Keck) McMinn |
| Identification made in | [no date] (5) |
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