They sit directly on the ground or on rotten wood. They range from golf ball size to as large as a watermelon. A big specimen of the giant puffball (Calvatia gigantea) can be almost two feet long and ...
The western giant puffball (Calvatia booniana) is a puffball mushroom that can grow 10 to 70 centimetres (3.9 to 28 in) in diameter, as large as its close relative, the giant puffball of eastern ...