Trametes versicolor (Turkey Tail)

Banded bracket fungus found on dead wood worldwide, source of the studied anticancer adjunct PSK.

Its concentric multicolored bands earn the turkey-tail name; it is among the most common fungi on dead wood.
Polysaccharide-K extracted from it has been used in Japan as an approved adjunct cancer therapy since the 1970s.
As a white-rot fungus it digests lignin, one of the few things in nature that can.