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CCDB → Angiosperms → Plantaginaceae → Penstemon → Penstemon cobaea var. purpureus Pennell
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Penstemon cobaea var. purpureus Pennell | Penstemon cobaea subsp. purpureus (Pennell) Pennell | 16 | IPCN online | Freeman, C. C. 1983. Chromosome numbers in Great Plains species of Penstemon (Scrophulariaceae). Brittonia 35(3): 232–238. |