North American Species

E. album 2n=20 ref Grant 1953; Sullivan 1976; Watanabe et al. 1990

E. altissimum 2n=20, 30, 40 ref Sullivan 1976

E. capillifolium n=10 ref Sullivan 1976; Watanabe et al. 1990

E. compositifolium n=10 ref Sullivan 1976; Watanabe et al. 1990

E. cordigerum 2n=40 ref Grant 1953

E. godfreyanum 2n=30I, 40I ref Montgomery & Fairbrothers 1970 (as E. vaseyi)

E. hyssopifolium 2n=20; n=20; 2n=30 ref Grant 1953; Sullivan 1976; King et al. 1976; Watanabe et al. 1990

E. lancifolium 2n=20 ref Sullivan 1976

E. leptophyllum 2n=20 ref Sullivan 1976

E. mikanioides 2n=20 ref Grant 1953; Sullivan 1976

E. mohrii 2n=20, 2n=30, 2n=40 ref Grant 1953; Sullivan 1976; Watanabe et al. 1990 (includes E. recurvans)

E. perfoliatum n=10 ref Grant 1953; Sullivan 1976; King et al. 1976; Watanabe et al. 1990

E. petaloideum 2n=20 ref Sullivan 1976

E. pilosum 2n=20, 30, 40 ref Grant 1953; Sullivan 1976; Montgomery & Fairbrothers 1970

E. pubescens 2n=39-40, 40 I ref King et al. 1976; Montgomery & Fairbrothers 1970 (as E. rotundifolium var. ovatum)

E. resinosum 2n=20 ref Grant 1953; Sullivan 1976; Watanabe et al. 1990

E. rotundifolium 2n=30, n=10, 2n=20 ref Grant 1953; Sullivan 1976; Watanabe et al. 1990; Montgomery & Fairbrothers 1970

E. semiserratum 2n=20 ref Grant 1953

E. serotinum 2n=20, n=10 ref Grant 1953; King et al. 1976; Watanabe et al. 1990

E. sessilifolium 2n=20, 30 ref Sullivan 1976; Grant 1953; Montgomery & Fairbrothers 1970

E. torreyanum 2n=30 ref Sullivan 1976 (included as part of E. hyssopifolium)

E. vaseyi 2n=30 ref Grant 1953; Sullivan 1976

Eurasian Species

E. cannabinum 2n=20, 40 ref Grant 1953; Watanabe 1986

E. chinense 2n=20, 30, 40, 50 ref Watanabe 1986; Watanabe et al. 1990

E. clematideum 2n=20 ref Watanabe 1986

E. formosanum 2n=20 ref Watanabe 1986; Watanabe et al. 1990

E. glehni 2n=20, 30, 40 ref Watanabe 1986; Watanabe et al. 1990

E. japonicum 2n=40 ref Watanabe 1986

E. lindleyanum 2n=20, 30, 40 ref Watanabe 1986; Watanabe et al. 1990

E. luchuense 2n=20 ref Watanabe et al. 1990

E. shimadai 2n=20 ref Watanabe 1986

E. variabile 2n=20 ref Watanabe 1986; Watanabe et al. 1990

E. yakushinense 2n=20 ref Watanabe 1986; Watanabe et al. 1990

References

Grant, W. F. 1953. A cytotaxonomic study in the genus Eupatorium. American Journal of Botany 40: 729-742.

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.

Montgomery, J. D. and D. E. Fairbrothers. 1970. A biosystematic study of the Eupatorium rotundifolium complex (Compositae). Brittonia 22: 134-150.

Sullivan, V. I. 1976. Diploidy, polyploidy, and agamospermy among species of Eupatorium (Compositae). Canadian Journal of Botany 54: 2907-2917

Watanabe, K. 1986. The cytogeography of the genus Eupatorium (Compositae) a review. Plant Species Biology 1: 99-116.

Watanabe, K., M. Ito, T. Yahara, V. I. Sullivan, T. Kawahara, and D. J. Crawford. 1990. Numerical analyses of karyotype diversity in the genus Eupatorium (Compositae, Eupatorieae). Plant Systematics and Evolution 170: 215-228.