Festuca ambigua Le Gall, Fl. Morbihan: 731. 1852
Festuca ambigua, Fl. Morbihan: 731. 1852
is basionym for Vulpia ambigua in J. Linn. Soc. Bot. 5: 190. 1861
is basionym for Vulpia ciliata subsp. ambigua in Bot. J. Linn. Soc. 76: 384. 1978
Festuca ambigua, Fl. Morbihan: 731. 1852