Rick and I walk every day, in fact twice a day, as demanded by our Golden Retriever, Huckleberry. On a path that leads to the forest floor a Dyer's Polypore, Phaeolus schweinitzii, appeared overnight. We were amazed! What life force mushrooms have to grow so fast.
This mushroom isn't good to eat but it has so much pigment that people use it to dye fabric. Depending on the age of the Polypore the color is yellow, gold, brown or orange. It has a part to play in nature as it breaks down dead wood into nutrients. There are several dead trees - snags - where this mushroom grows.
The first picture is the first day it appeared. The second is four days later.