Xanthocephalum gymnospermoides (A. Gray) Benth. & Hook.f. [ Gutierrezia gymnospermoides A. Gray]
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Xanthocephalum gymnospermoides (A. Gray) Benth. & Hook.f. [ Gutierrezia gymnospermoides A. Gray] [Compositae]
W. Curtis, Bot. Mag., vol. 85 [ser. 3, vol. 15]: t. 5155 (1859) [W.H. Fitch]