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CCDB → Angiosperms → Plantaginaceae → Penstemon → Penstemon thompsoniae (A. Gray) Rydb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Penstemon thompsoniae (A. Gray) Rydb. | Penstemon thompsoniae (A. Gray) Rydb. | 8 | IPCN online | Schaack, C. G., J. D. Morefield & W. D. Windham. 1984. Chromosome Number Reports LXXXIII. Taxon 33: 351–354. | |||
| ! | Penstemon thompsoniae (A. Gray) Rydb. | Penstemon thompsoniae (A. Gray) Rydb. | 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. |