References
For Polygonella
Brandbyge. 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. Google Scholar
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Freeman, C.C. 2005e. Polygonella. In Flora of North America Editorial Committee. 2005. Flora of North America north of Mexico. Volume 5, Magnoliophyta: Caryophyllidae, part 2. Oxford Univ. Press, New York, NY. 656 pp. Google Scholar
Horton, J.H. 1961. A monograph of Delopyrum Small, Dentoceras Small, Polygonella Michx., and Thysanella Gray (Polygonaceae). Ph.D. dissertation, Univ. of North Carolina at Chapel Hill. Google Scholar
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Wunderlin, R.P. 1981. Polygonella polygama (Polygonaceae) in Florida. Florida Sci. 44: 78-80. Google Scholar