Xanthisma A.P. de Candolle.
As circumscribed following Hartman in FNA (2006b), a genus of ca. 17 species, of sc. and sw. United States and Mexico.
Ref: Hartman (2006a) In Flora of North America Editorial Committee (2006b); Nesom & Turner (2007); Semple (1974). Show full citations.
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