For Jeffersonia
George, L.O'R. 1997c. Jeffersonia. In Flora of North America Editorial Committee. 1997. Flora of North America north of Mexico. Volume 3, Magnoliophyta: Magnoliidae and Hamamelidae. Oxford Univ. Press, New York, NY. 590 pp.
Loconte, H., and J.R. Estes. 1989b. Phylogenetic systematics of Berberidaceae and Ranunculales (Magnoliidae). Systematic Bot. 14: 565-579.
Loconte. 1993. In Kubitzki, K., J.G. Rohwer, and V. Bittrich, eds. 1993. The families and genera of vascular plants. II. Flowering plants – Dicotyledons – Magnoliid, Hamamelid and Caryophyllid families. Springer, Berlin. 653 pp.
Stearn, W.T. 2002. The genus Epimedium and other herbaceous Berberidaceae, including the genus Podophyllum. Timber Press, Portland, OR.
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