Coreopsis buchii is a species of flowering plant in the tickseed tribe within the daisy family. It is endemic to the island of Hispaniola (the Dominican Republic and Haiti).
The species was first described by Ignatz Urban in 1915 as Selleophytum buchii, the sole species in genus Selleophytum.Urban, Ignatz. 1915. Repertorium Specierum Novarum Regni Vegetabilis 13: 483-484 in LatinTropicos, Selleophytum Urb. In 1924 Sidney Fay Blake placed the species in genus Coreopsis as Coreopsis buchii.Blake, Sydney Fay. 1924. Contributions from the United States National Herbarium 22(8): 641–642 in English
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