2026-01-292026-01-292017-12SILVA, Marcos José da; INOCENCIO, Laís de Souza; SODRÉ, Rodolfo Carneiro; ALONSO, Alexandre Antonio. Morphological and anatomical evidence support a new wild cassava: Manihot fallax (Crotonoideae, Euphorbiaceae), from Mato Grosso, Brazil. PhytoKeys, Sófia, v. 91, p. 139-156, 2017. DOI: 10.3897/phytokeys.91.21465. Disponível em: https://phytokeys.pensoft.net/article/21465/list/9/. Acesso em: 15 jan. 2025.1314-2011e- 1314-2003https://repositorio.bc.ufg.br//handle/ri/29571During the preparation of the taxonomic treatment of Manihot in the Midwest Region of Brazil, a new species was found. Manihot fallax M.J. Silva & L.S. Inocencio is described, illustrated and morphologically compared with similar simple-leaved species. The conservation status, geographic distribution (including map), ecology, phenology and notes about leaf anatomy of the new species are given. The synonymisation of M. robusta M. Mend. & T. B. Cavalc. under M. attenuata Müll. Arg. and lectotypes for M. attenuata and M. brachystachys Pax & K. Hoffm are also proposed. An emended description of M. attenuata is proposed as the original description is incomplete as it lacks information on the pistillate flowers, fruits and seeds.engAcesso Abertohttp://creativecommons.org/licenses/by-nc-nd/4.0/Central BrazilLeaf anatomyNomenclatureTypificationManihoteaeArtigo10.3897/phytokeys.91.21465