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CCDB → Gymnosperms → Cupressaceae → Pinus → Pinus ponderosa Douglas ex C. Lawson
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Pinus ponderosa Douglas ex C. Lawson | Pinus ponderosa Douglas ex C. Lawson | 24 | flora of NW Europe | http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=1568 | ||
| ! | Pinus ponderosa Douglas ex C. Lawson | Pinus ponderosa Douglas ex C. Lawson | 24 | IPCN online | Hizume, M. 1988. Karyomorphological studies in the family Pinaceae. Mem. Fac. Educ. Ehime Univ., Ser. 3, Nat. Sci. 8: 1–108. | ||
| ! | Pinus ponderosa Douglas ex C. Lawson | Pinus ponderosa Douglas ex C. Lawson | 24 | IPCN online | Ohri, D. & T. N. Khoshoo. 1986. Genome size in gymnosperms. Pl. Syst. Evol. 153: 119–132. | ||
| ! | Pinus ponderosa Douglas ex C. Lawson | Pinus ponderosa Douglas ex C. Lawson | 24 | IPCN online | Chen, T. h., R. j. Wu, H. l. Lai & K. y. Li. 1992. A preliminary study on cytology taxonomy and system evolution of pine. J. Fujian Coll. Forest. 12: 437–444. | ||
| ! | Pinus ponderosa Douglas ex C. Lawson | Pinus ponderosa Douglas ex C. Lawson | 24 | IPCN73-74 | SAYLOR, L.C. 1972. Karyotype analysis of the genus Pinus - Subgenus Pinus. Silvae Genet. 21: 155-163. | ||
| ! | Pinus washoensis H. Mason & Stockw. | Pinus ponderosa Douglas ex C. Lawson | 24 | IPCN73-74 | SAYLOR, L.C. 1972. Karyotype analysis of the genus Pinus - Subgenus Pinus. Silvae Genet. 21: 155-163. | ||
| ! | Pinus washoensis H. Mason & Stockw. | Pinus ponderosa Douglas ex C. Lawson | 24 | eFlora | |||
| ! | Pinus ponderosa Douglas ex C. Lawson | Pinus ponderosa Douglas ex C. Lawson | 24 | Cave1956 | Mehra & Khoshoo a |