A survey of Panicum subg. Panicum confirmed the occurrence of 29 species in Brazil. Analytical keys to differentiate the subgenus Panicum from other sections of Panicum not included in defined subgenera, and for species of subgenus Panicum are provided, as well as illustrations of taxonomic characteristics and data on their geographic distribution.
Acta botanica brasilica. São Paulo, SP. Vol. 18, n. 2 (abr./jun. 2004), p. 359-367