Probable Base Number for Genus x = 10
C. paniculata 2n=20 ref Gaiser 1954
C. subtropicana 10 ref fill in
References Gaiser, L. O. 1954. Studies in the Kuhniinae (Eupatorieae). II. Journal of the Arnold Arboretum 35: 87-133.
References
Gaiser, L. O. 1954. Studies in the Kuhniinae (Eupatorieae). II. Journal of the Arnold Arboretum 35: 87-133.