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CCDB → Angiosperms → Cactaceae → Echinocereus → Echinocereus pectinatus (Scheidw.) Engelm.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Echinocereus pectinatus var. pectinatus | Echinocereus pectinatus (Scheidw.) Engelm. | 22 | IPCN online | Pinkava, D. J. & B. D. Parfitt. 1982. Chromosome numbers in some cacti of western North America IV. Bull Torrey Bot. Club. 109: 121–128. | |||
| Echinocereus pectinatus var. pectinatus | Echinocereus pectinatus (Scheidw.) Engelm. | 11 | IPCN online | Ross, R. 1981. Chromosome counts, cytology and reproduction in the Cactaceae. Amer. J. Bot. 68: 463–470. | |||
| ! | Echinocereus pectinatus var. minor (Engelm.) L. D. Benson | Echinocereus pectinatus (Scheidw.) Engelm. | 22 | IPCN online | Pinkava, D. J., M. A. Baker, B. D. Parfitt, M. W. Mohlenbrock & R. D. Worthington. 1985. Chromosome numbers in some cacti of western North America-V. Syst. Bot. 10: 471–483. | ||
| ! | Echinocereus pectinatus var. neomexicanus (J. M. Coult.) L. D. Benson | Echinocereus pectinatus (Scheidw.) Engelm. | 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. | ||
| ! | Echinocereus pectinatus var. neomexicanus (J. M. Coult.) L. D. Benson | Echinocereus pectinatus (Scheidw.) Engelm. | 22 | IPCN75-78 | Weedin & Powell 1978a |