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CCDB → Angiosperms → Plantaginaceae → Penstemon → Penstemon superbus A. Nelson
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Penstemon superbus A. Nelson | Penstemon superbus A. Nelson | 8 | IPCN online | Ward, D. E. 1983. Chromosome counts from New Mexico and southern Colorado. Phytologia 54: 302–309. | |||
| ! | Penstemon superbus A. Nelson | Penstemon superbus A. Nelson | 16 | C-values database | Broderick SR, Stevens MR, Geary B, Love SL, Jellen EN, Dockter RB, Daley SL, Lindgren DT. 2011. A survey of Penstemon's genome size. Genome 54: 160-173. |