Monocostus is a group of plants in the Costaceae described as a genus in 1904.Schumann, Karl Moritz. 1904. Das Pflanzenreich IV. 46(Heft 20): 427Tropicos, Monocostus K. Schum.Specht, C. D. & D. W. Stevenson. 2006. A new phylogeny-based generic classification of Costaceae (Zingiberales). Taxon 55(1): 153–163Tropicos, Chamaecostus C.D. Specht & D.W. Stev. There is only one known species, Monocostus uniflorus, endemic to Peru.Kew World Checklist of Selected Plant Families
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