Appearance
The cap is convex when young, and soon flattens out into a mostly irregular shape. It is red-brown when young, yellowish grey when old and usually about 2–5 cm in diameter. the pores are white, turning slightly brown when bruised, and the spores are white. The stem is light yellowish brown often with a black base.
Naming
There are two other "polypores" with a black stem at the base, "Polyporus badius" with a shiny red-brown to purple-black cap which can grow up to 20 cm across, and the dark brown, velvety "Polyporus melanopus", which grows up to 10 cm across and can be found on dead wood.References:
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