Poa pratensis
To date, "Epichloë australiensis" has only been found in some Australian populations of its host grass, whereas other populations in Australia and New Zealand have "Epichloë aotearoae". Molecular phylogenetic analysis indicates that "Epichloë australiensis" is an interspecific hybrid, and that its closest teleomorphic (sexual) relatives are "Epichloë festucae" and a strain in the "Epichloë typhina" complex (from "Poa pratensis").