Reference:Solbrig1961b
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Verbatim text: Solbrig, O. T. 1961b. Synopsis of the genus Xanthocephalum (Compositae). Rhodora 63: 151–164.
Author: Solbrig, O.T.
Year: 1961b
Title: Synopsis of the genus Xanthocephalum (Compositae)
Journal: Rhodora
Volume: 63
Pages: 151–164