Cap 100-150 mm broad x 70-100 mm radius x 10-30 mm thick, irregularly semicircular to shelflike, wrinkled to lumpy, tomentose to glabrous, dark brown to dark yellowish brown with a yellow margin; flesh tough and leathery, yellowish brown. Pores round, 6-8 per mm, purplish brown to purplishyellowish brown; tubes in a single layer, 5-10 mm long. Stem absent. Spore Deposit white. Edibility: edible but too tough to eat.