Arizona fescue ( Festuca arizonica ) often harbours asymptomatic, asexual endophytic fungi from the genus Neotyphodium . In agronomic grasses, Neotyphodium endophytes are often credited with a wide range of mutualistic benefits to its host many of which are related to fungal production of alkaloids for herbivore deterrence. Neotyphodium in the native grass Arizona fescue, however, usually produces alkaloids at levels too low t...