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CCDB → Angiosperms → Cactaceae → Cylindropuntia → Opuntia davisii Engelm. & J. M. Bigelow
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Opuntia davisii Engelm. & J. M. Bigelow | Cylindropuntia davisii (Engelm. & J. M. Bigelow) F. M. Knuth | 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 davisii Engelm. & J. M. Bigelow | Cylindropuntia davisii (Engelm. & J. M. Bigelow) F. M. Knuth | 22II | c.33 | IPCN online | Powell, A. M. & J. F. Weedin. 2005. Documented chromosome numbers 2005: 2. Counts from western Texas, mostly trans-Pecos cacti. Sida 21(3): 1665–1668. | |
| ! | Opuntia davisii Engelm. & J. M. Bigelow | Cylindropuntia davisii (Engelm. & J. M. Bigelow) F. M. Knuth | c.22II | IPCN online | Powell, A. M. & J. F. Weedin. 2001. Chromosome numbers in Chihuahuan Desert Cactaceae. III. Trans-Pecos Texas. Amer. J. Bot. 88(3): 481–485. |