Mapping will be based on a standard reference mark based on political units when available.
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North America
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Canada
:
Gleason, H. A. 1968. The Sympetalous Dicotyledoneae. vol. 3. 596 pp. In H. A. Gleason Ill. Fl. N. U.S. (ed. 3). New York Botanical Garden, New York.
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Asia
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Kazakhstan
:
Flora of China Editorial Committee. 1998. Flora of China (Scrophulariaceae through Gesneriaceae). 18: 1–449. In C. Y. Wu, P. H. Raven & D. Y. Hong (eds.) Fl. China. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
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Russian Federation
:
Flora of China Editorial Committee. 1998. Flora of China (Scrophulariaceae through Gesneriaceae). 18: 1–449. In C. Y. Wu, P. H. Raven & D. Y. Hong (eds.) Fl. China. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
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North America
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United States
:
Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
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United States
:
Gleason, H. A. 1968. The Sympetalous Dicotyledoneae. vol. 3. 596 pp. In H. A. Gleason Ill. Fl. N. U.S. (ed. 3). New York Botanical Garden, New York.
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Asia
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China
Xinjiang Uygur:
Flora of China Editorial Committee. 1998. Flora of China (Scrophulariaceae through Gesneriaceae). 18: 1–449. In C. Y. Wu, P. H. Raven & D. Y. Hong (eds.) Fl. China. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.