Cotula mexicana, also known as Mexican brassbuttons, is a plant species in the sunflower family. It is widespread in South AmericaCabrera, A. L. 1978. Compositae. 10: 1–726. In A. L. Cabrera (ed.) Flora de la provincia de Jujuy. Instituto Nacional de Tecnología Agropecuaria, Buenos AiresLuteyn, J. L. 1999. Páramos, a checklist of plant diversity, geographical distribution, and botanical literature. Memoirs of The New York Botanical Garden 84: viii–xv, 1–278Marticorena, C. & M. Quezada. 1985. Catálogo de la Flora Vascular de Chile. Gayana, Botánica 42: 1–157 and also found in central Mexico (Puebla, México State, Hidalgo)Turner, B. L. 1996. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 6. Tageteae and Athemideae. Phytologia Memoirs 10: i–ii, 1–22, 43–93 and parts of the United States (California, Idaho).Calflora taxon report, University of California, Cotula mexicana (DC.) Cabrera, Mexican brassbuttons Biota of North America Program 2014 county distribution map
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