Circaea alpina L.:
Afghanistan (Asia)
Burma (Asia)
Bhutan (Asia)
Canada (North America)
India (Asia)
Japan (Asia)
Kazakhstan (Asia)
Mongolia (Asia)
Nepal (Asia)
Russian Federation (Asia)
South Korea (Asia)
Thailand (Asia)
United States (North America)
Vietnam (Asia)
China (Asia)
Afghanistan (Asia)
Burma (Asia)
Bhutan (Asia)
Canada (North America)
India (Asia)
Japan (Asia)
Kazakhstan (Asia)
Mongolia (Asia)
Nepal (Asia)
Russian Federation (Asia)
South Korea (Asia)
Thailand (Asia)
United States (North America)
Vietnam (Asia)
China (Asia)
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Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
http://www.tropicos.org/Reference/1103
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Voss, E. G. 1985. Michigan Flora. Part II Dicots (Saururaceae-Cornaceae). Bull. Cranbrook Inst. Sci. 59. xix + 724.
http://www.tropicos.org/Reference/1700
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Gleason, H. A. 1968. The Choripetalous Dicotyledoneae. vol. 2. 655 pp. In H. A. Gleason Ill. Fl. N. U.S. (ed. 3). New York Botanical Garden, New York.
http://www.tropicos.org/Reference/1704
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Radford, A. E., H. E. Ahles & C. R. Bell. 1968. Man. Vasc. Fl. Carolinas i–lxi, 1–1183. University of North Carolina Press, Chapel Hill.
http://www.tropicos.org/Reference/636
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Small, J. K. 1933. Man. S.E. Fl. i–xxii, 1–1554. Published by the Author, New York.
http://www.tropicos.org/Reference/1515
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Great Plains Flora Association. 1986. Fl. Great Plains i–vii, 1–1392. University Press of Kansas, Lawrence.
http://www.tropicos.org/Reference/637
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Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York.
http://www.tropicos.org/Reference/1327
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Godfrey, R. K. & J. W. Wooten. 1981. Aquatic Wetland Pl. S.E. U.S. Dicot. 933 pp. Univ. Georgia Press, Athens.
http://www.tropicos.org/Reference/1711
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Flora of China Editorial Committee. 2007. Fl. China 13: 1–548. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
http://www.tropicos.org/Reference/1031194
