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CCDB → Angiosperms → Cactaceae → Opuntia → Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Opuntia nicholii L. D. Benson | Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt | 66 | 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 nicholii L. D. Benson | Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt | 33 | 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 nicholii L. D. Benson | Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt | 33 | IPCN75-78 | Pinkava et al. 1977 | ||
| ! | Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt | Opuntia polyacantha var. nicholii (L. D. Benson) B. D. Parfitt | 66 | eFlora |