Inonotus nidus-pici
A heart-rot polypore of central and eastern Europe that fruits inside cavities and wounds on living broadleaf trees, especially oaks such as Quercus cerris and Q. petraea, and also beech, maple, walnut and horse chestnut. Its decay softens the heartwood, and the name ('woodpecker's nest') refers to the nest cavities woodpeckers excavate in the rotted trunks. It is a tree pathogen and is not cultivated.
Where it grows wild
Warm, dry oak and mixed broadleaf forest, parks and old trees; fruit bodies form in trunk cavities of living trees, often high up.
Recorded from 160 to 680 m, median 320 m (22 records).
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