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CCDB → Angiosperms → Compositae → Fleischmannia → Eupatorium pycnocephalum Less.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Eupatorium pycnocephalum Less. | Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. | 10II | IPCN online | Sundberg, S. D., C. P. Cowan & B. L. Turner. 1986. Chromosome counts of Latin American Compositae. Amer. J. Bot. 73(1): 33–38. | |||
| Eupatorium pycnocephalum Less. | Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. | 20, 21 | IPCN online | Jansen, R. K., T. F. Stuessy, S. Díaz-Piedrahíta & V. A. Funk. 1984. Recuentos cromosómicos en Compositae de Colombia. Caldasia 14(66): 7–20. | |||
| Eupatorium pycnocephalum Less. | Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. | 10 | IPCN online | Ward, D. E. & R. Spellenberg. 1988. Chromosome counts of angiosperms from New Mexico and adjacent areas. Phytologia 64: 390–398. | |||
| Eupatorium pycnocephalum Less. | Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. | 20 | IPCN67-71 | POWELL, A.M., & R.M. KING. 1969. Chromosome numbers in the Compositae: Colombian species. Amer. J. Bot. 56: 116-121. | |||
| Eupatorium pycnocephalum Less. | Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. | 20 | Cave1962 | Turner et al. 1962 |