Reference:Beaman1957a
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Verbatim text: Beaman, J. H. 1957. The systematics and evolution of Townsendia (Compositae). Contr. Gray Herb. 183: 1–151.
Author: Beaman, J.H.
Year: 1957
Title: The systematics and evolution of Townsendia (Compositae)
Journal: Contr. Gray Herb
Volume: 183
Pages: 1–151