About Trichaptum biforme (Fr.) Ryvarden
Trichaptum biforme (Fr.) Ryvarden grows 1–7.5 centimetres (1⁄2–3 inches) wide. When young, it is violet in color; over time it fades into white to brown colored zones, and retains violet coloring along its margin for a period. It is widely distributed, grows on at least 65 different tree host species, and only rarely grows on conifers. It is a saprobe that functions to decompose hardwood stumps and logs. It is inedible.