Accepted By:
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Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
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Böcher, T. W., K. Holmen & K. Jacobsen. 1968. Fl. Greenland (ed. 2) 312 pp.
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Flora of North America Editorial Committee. 2009. Magnoliophyta: Paeoniaceae to Ericaceae. 8: i–xxiv, 1–585. In Fl. N. Amer.. Oxford University Press, New York.
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Hultén, O. E. G. 1968. Flora of Alaska and neighboring territories. i–1008. In Fl. Alaska. Stanford University Press, Stanford.
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Scoggan, H. J. 1978. Dicotyledoneae (Saururaceae to Violaceae). 3: 547–1115. In Fl. Canada. National Museums of Canada, Ottawa.
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