Epichloë hordelymi is a hybrid asexual species in the fungal genus Epichloë.
A systemic and seed-transmissible grass symbiont first described in 2013,[1] Epichloë hordelymi is a natural allopolyploid of Epichloë bromicola and a strain in the Epichloë typhina complex.
Epichloë hordelymi is found in Europe, where it has been identified in the grass species Hordelymus europaeus.