This polypore consists of many caps which grow in clusters from a little stalk. The entire fruiting body can reach up to 60 cm across. The little caps are up to 8 cm wide and 1 cm thick. Pores bruised do not change the color. Spore powder is beige. It grows at the base of oak's trunks during fall year after year. It is very rare and is included in Red Data Book of Latvia. Edible while young, has to be boiled first.