D. incompta n=16 ref King et al. 1976

D. perornata n=16 ref Sundberg et al. 1986

D. pyramidalis n=16 ref Sundberg et al. 1986; Watanabe et al. 2007 NOTE - Erythradenia

D. thieliana 2n=32 ref Watanabe et al. 1995

References

King, R. M., D. W. Kyhos, A. M. Powell, P. H. Raven, and H. Robinson. 1976. Chromosome numbers in Compositae. XIII. Eupatorieae. Annals of the Missouri Botanical Garden 63: 862-888.

Sundberg, S., C. P. Cowan, and B. L. Turner. 1986. Chromosome counts of Latin American Compositae. American Journal of Botany 73: 33-38.

Watanabe, K., R. M. King, T. Yahara, M. Ito, J. Yokoyama, T. Suzuki, and D. J. Crawford. 1995. Chromosomal cytology and evolution in Eupatorieae (Asteraceae). Annals of the Missouri Botanical Garden 82: 581-592.

Watanabe, K., T. Yahara, G. Hashimoto, Y. Nagatani, A. Soejima, T. Kawahara, and M. Nakazawa. 2007. Chromosome numbers and karyotypes in Asteraceae. Annals of the Missouri Botanical Garden 94: 643-654.