Chaptalia Ventenat. Sunbonnets.
A genus of about 60 species, herbs, of warm temperate, subtropical, and tropical America. The remainder of the genus is distributed in the West Indies, Central America, and South America.
ID notes: The basal leaves are distinctive, the undersurface permanently and tightly white floccose, the upper surface floccose when young but glabrate in age, and the margins with obscure denticulations.
Ref: Cronquist (1980); Harms (2011); Nesom (1995a); Nesom (2006a) In Flora of North America Editorial Committee (2006a); Vuilleumier (1969). Show full citations.
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