Bondarzewia berkeleyi

[4] The distribution of B. berkeleyi is widespread, occurring in Europe, Asia, Africa, and North America east of the Great Plains (June–October).

[10] It causes a white stringy rot in the roots and heartwood of the lower trunk, typically not extending more than 0.9–1.5 m (3–5 ft) upwards.

The decay is mainly restricted to the heartwood, and external symptoms might include excessive tapering or flaring at the base of the trunk, cracks, seams, and sap flow.

[6] Some sources compare the texture to shoe leather when older,[10] while others suggest that the softer outer edges of young specimens can be consumed.

[12] Some field guides list the species as inedible or warn that it may cause gastrointestinal upset or allergic reactions in some individuals.