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CCDB → Angiosperms → Plantaginaceae → Penstemon → Penstemon confertus Douglas ex Lindl.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | 16 | IPCN66 | Taylor & Brockman 1966 | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | 16 | IPCN67-71 | SPELLENBERG, R. 1971. In IOPB chromosome reports XXXII. Taxon 20: 349-356. | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | ~16 | Fedorov, 1974 | Heitz 1927b | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | 32 | Fedorov, 1974 | Clausen J. et al. 1940b | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | 32 | Fedorov, 1974 | Keck 1945 | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | 32 | Fedorov, 1974 | Taylor R. L., Brockman 1966 | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | 32 | Darlington, 1955 | Keck "1945 " | ||
| ! | Penstemon confertus Douglas ex Lindl. | Penstemon confertus Douglas ex Lindl. | 32 | 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. |