Three recently-introduced alien grasses in the Iberian Peninsula

Three non-native grasses (Gramineae/Poaceae): Bothriochloa barbinodis, Bothriochloa laguroides subsp. torreyana and Agropyron desertorum, apparently hitherto unrecorded, have been detected in the Iberian Peninsula in recent years, and a further species, Nassella neesiana, is recorded as increasing its known distribution area in Catalonia (NE Spain). Bothriochloa barbinodis, Bothriochloa laguroides subsp. torreyana y Agropyron desertorum, sin citas previas conocidas, han sido detectadas en la península Ibérica recientemente, y otra especie, Nassella neesiana, amplía su área de distribución en Catalu a (NE Espa a).