Calvatia bovista is a species of Calvatia mushroom.
The fruiting body is high and wide, round on top with a wide stemlike sterile base (not producing spores), often half the height of the fruiting body. The spores are 4âÂÂ6.5 üm, round, minutely warted or spiny. The spore print is white and cheesy when young, brownish and dry in age.
It is the second largest Calvatia in North America.
It is fairly common and found in habitats such as pastures and open woods.
As with other Calvatia mushrooms, it is edible when young, and it is used in medicine.