3. Echinochloa crusgalli (L.) P. Beauv, Ess. Agrostogr. 1: 5, 3, 16, 169 (1812).
Por G. Davidse.
Panicum crusgalli L., Sp. Pl. 1: 56 (1753). Lectotipo (designado por Hitchcock, 1908): Canada, Kalm s.n. (LINN).
Echinochloa crusgalli was not reported for Mesoamérica by Pohl (1994), but besides a Nicaraguan collection, is now also known from two collections from Costa Rica and one from Guatemala. Although the species in its various manifestations is cosmopolitan in subtropical and temperate areas of the world, it is rare in Mesoamérica and the tropics in general. In the New World tropics, the closely related E. crus-pavonis is much more common.