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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United States
:
Barneby, R. C. 1964. Atlas of North American Astragalus. Mem. New York Bot. Gard. 13(1–2): 1–1188.
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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
:
Munz, P. A. & D. D. Keck. 1959. Cal. Fl. 1–1681. University of California Press, Berkeley.
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United States
:
Munz, P. A. 1974. Fl. S. Calif. 1–1086. University of California Press, Berkeley.
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United States
California:
Barneby, R. C. 1964. Atlas of North American Astragalus. Mem. New York Bot. Gard. 13(1–2): 1–1188.
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United States
California:
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
California:
Munz, P. A. & D. D. Keck. 1959. Cal. Fl. 1–1681. University of California Press, Berkeley.
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United States
California:
Munz, P. A. 1974. Fl. S. Calif. 1–1086. University of California Press, Berkeley.