References

For Poterium

Kalkman. 2004. In Kubitzki, K., ed. 2004. The families and genera of vascular plants. VI. Flowering plants – Dicotyledons – Celastrales, Oxalidales, Rosales, Cornales, Ericales. Springer, Berlin. 489 pp. Google Scholar

Nordborg, G. 1966. Sanguisorba L., Sarcopoterium Spach, and Bencomia Webb et Berth. Opera Botanica 11: 2. C. Blum, Lund, Sweden. Google Scholar

Nordborg, G. 1967. The genus Sanguisorba section Poterium. Opera Botanica No. 16. C.W.K. Gleerup, Lund, Sweden. Google Scholar

Robertson, K.R. 1974. The genera of Rosaceae in the southeastern United States. J. Arnold Arb. 55: 303-332, 344-401, 611-662. Google Scholar

Weakley, A.S. 2014a. Poterium. In Flora of North America Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9, Magnoliophyta: Picramniaceae to Rosaceae. Oxford Univ. Press, New York, NY. 713 pp. Google Scholar