In this paper, Alloteropsis J. Presl (Panicoideae/Paniceae s.l.) is registered for the first time in Brazil, in the State of Amapá.. This is also the first record of the genus in the South America. The species is described and illustrated. Identification keys and comments on the taxonomy, ecology and conservation are presented.
Gramineae; Amapá State; weeds
