| Name | Penstemon campanulatus var. angustiflora Loesener |
| Authorship | Loesener |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Penstemon campanulatus (Cavanilles) Willdenow |
| Citation | 1894 Bull. Herb. Boissier 2: 562 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Penstemon campanulatus var. angustiflora Loesener |
| Identification made in | [no date] (1) |
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