| Name | Penstemon rydbergii var. varians (A. Nelson) Cronquist |
| Authorship | (A. Nelson) Cronquist |
| Rank | Variety |
| Placed in | Penstemon rydbergii A. Nelson |
| Citation | 1959 Vasc. Pl. Pacif. N. W. 4: 402 |
| Holdings | 11 Specimens held in the Harvard University Herbaria identified as Penstemon rydbergii var. varians (A. Nelson) Cronquist |
| Identification made in | [no date] (11) |
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