Ripplebark was a large subterranean fungus that grew in the Underdark. It was known to dwarves as arantym and was a major food source for orcs in the North. It grew in shelf-like formations that resembled masses of decaying flesh but had a nut-like flavor. Despite its looks, it was quite edible in its raw state and could be roasted to improve the flavor. Scorched or burnt ripplebark turned black, but was still edible. A single, large shelf of ripplebark could be harvested for 7 to 10 pounds (3.2 to 4.5 kilograms) of food.