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CCDB → Angiosperms → Cactaceae → Thelocactus → Thelocactus bicolor subsp. flavidispinus (Backeb.) N. P. Taylor
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Thelocactus bicolor var. flavidispinus Backeb. | Thelocactus bicolor subsp. flavidispinus (Backeb.) N. P. Taylor | 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. | |||
| ! | Thelocactus bicolor var. flavidispinus Backeb. | Thelocactus bicolor subsp. flavidispinus (Backeb.) N. P. Taylor | 22 | eFlora |