Reference:Solbrig1960a
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Verbatim text: Solbrig, O. T. 1960. The status of the genera Amphiachyris, Amphipappus, Greenella, Gutierrezia, Gymnosperma, and Xanthocephalum (Compositae). Rhodora 62: 43–53.
Author: Solbrig, O.T.
Year: 1960
Title: The status of the genera Amphiachyris, Amphipappus, Greenella, Gutierrezia, Gymnosperma, and Xanthocephalum (Compositae)
Journal: Rhodora
Volume: 62
Pages: 43–53