Boletellus russellii Russell's Bolete
The cap surface tends to break up into patches. The pores are large, yellow and angular. Deep flutes run down the stalk giving it a shaggy appearance.
Caps are 3-9 cm across, dry, felty to scaly, convex, light-brown to ochre, and sometimes breaking up into patches. Flesh is yellowish, not staining. Tubes are cream to greenish yellow, and not staining. Pores are large and angular. Stalks are up to 20 cm tall by 2.5 cm wide, red-brown, and with deep longitudinal flutes forming a shaggy, raised network. Spore prints are dark brown. Widespread and not uncommon, it fruits under hardwoods especially oaks. Edible.