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CCDB → Angiosperms → Compositae → Calea → Calea zacatechichi Schltdl.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Calea zacatechichi Schltdl. | Calea zacatechichi Schltdl. | ca.19 | IPCN online | Keil, D. J. & T. F. Stuessy. 1975. Chromosome counts of Compositae from the United States, Mexico and Guatemala. Rhodora 77: 171–195. | |||
| ! | Calea nelsonii B. L. Rob. & Greenm. | Calea zacatechichi Schltdl. | c. 18 | Cave1962 | Turner et al. 1962 |