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The Comps of Mexico is a long-running series of systematic accounts of all the tribes and genera of the family Asteraceae. Chapter 17 in this treatment deals with the subtribes Enceliinae (genera Encelia, Flourensia, Geraea, and Helianthella) and Engelmanniinae (genera Berlandiera, Borrichia, Engelmannia, Lindheimera, and Vigethia).