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CCDB → Angiosperms → Plantaginaceae → Penstemon → Penstemon campanulatus subsp. chihuahuensis Straw
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Penstemon campanulatus subsp. chihuahuensis Straw | Penstemon campanulatus var. chihuahuensis (Straw) B. L. Turner | 8 | Cave1963 | Straw 1963 |