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CCDB → Angiosperms → Cactaceae → Opuntia → Opuntia macrorhiza var. macrorhiza
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | 44 | IPCN online | Pinkava, D. J., B. D. Parfitt, M. A. Baker & R. D. Worthington. 1992. Chromosome numbers in some cacti of western North America---VI, with nomenclatural changes. Madroño 39(2): 98–113. | |||
| Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | 22 | IPCN online | Pinkava, D. J., J. P. Rebman & M. A. Baker. 1998. Chromosome numbers in some cacti of western North America---VII. Haseltonia 6: 32–41. | |||
| Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | 22 | IPCN online | Pinkava, D. J., L. A. MCGILL & T. REEVES. 1977. Chromosome numbers in some cacti of western North America---III. Bull. Torrey Bot. Club 104: 105–110. | |||
| Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | ca.22 | IPCN online | Weedin, J. F. & A. M. Powell. 1978. Chromosome numbers in Chihuahuan desert Cactaceae. Trans-Pecos Texas. Amer. J. Bot. 65: 531–537. | |||
| ! | Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | 22 | IPCN67-71 | PINKAVA, D.J., & M.G. MCLEOD. 1971. Chromosome numbers in some cacti of western North America. Brittonia 23: 171-176. | ||
| ! | Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | ca.22 | IPCN75-78 | Weedin & Powell 1978a | ||
| ! | Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | 22 | IPCN75-78 | Pinkava et al. 1977 | ||
| ! | Opuntia macrorhiza var. macrorhiza | Opuntia macrorhiza Engelm. | 22 | IPCN73-74 | PINKAVA, D.J., M.G. MCLEOD, L.A. MCGILL, & R.C. BROWN. 1973. Chromosome numbers in some cacti of western North America-II. Brittonia 25: 2-9. |