Pisolithus arhizus, commonly known as the dead man's foot, dyeball,[1] pardebal, or Bohemian truffle, is a widespread earth-ball like fungus, which may in fact be several closely related species. This puffball's black viscous gel is used as a natural dye for clothes. Pisolithus arhizus is a major component in mycorrhizal fungus mixtures that are used in gardening as powerful root stimulators. It is inedible.[2]
In South Africa, it is known as the pardebal, and in Europe, it is known as the Bohemian truffle.
The fruiting body is 5–30 cm tall and 4–20 cm wide, with a thin yellow-brown to brown exterior layer.[3] The spores are brown.
Dictyocephalos attenuatus is similar.