Large, fleshy, scaly, yellowish tan bracket fungus; large, yellowish white pores; short stalk; smells like watermelon rind. Grows singly or in layers, on living or dead deciduous wood. May–October. Cap circular to fan-shaped; yellowish tan; covered with dark, hairy scales. Pores large, angular; yellowish white. Stalk stublike; blackish at base; off-center, tough. Spore print white. Spores magnified are oblong, elliptical, smooth.
Lookalikes: Other polypores, none of which are known to be poisonous.