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CCDB → Angiosperms → Plantaginaceae → Penstemon → Penstemon purpusii Brandegee
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Penstemon purpusii Brandegee | Penstemon purpusii Brandegee | 8 | IPCN online | Chuang, T. I. & L. R. Heckard. 1992. Chromosome numbers of some North American Scrophulariaceae, mostly Californian. Madroño 39(2): 137–149. |