Petasites

Foodplant / saprobe
effuse colony of Gliomastix dematiaceous anamorph of Gliomastix luzulae is saprobic on dead stem of Petasites
Other: major host/prey

In Great Britain and/or Ireland:
Foodplant / miner
larva of Trypeta zoe mines leaf of Petasites

Foodplant / saprobe
basidiome of Tulasnella deliquescens is saprobic on dead, decayed stem of Petasites
Other: unusual host/prey

Foodplant / miner
larva of Vidalia cornuta mines leaf of Petasites
Remarks: Other: uncertain