Common Puffball (Lycoperdon perlatum) is a very common, very widespread, easily recognized mushroom. It has a worldwide distribution, found on every continent including Antarctica. It may be the most abundant woodland puffball in North America, though in Minnesota Pear-shaped Puffball is more common.
Common Puffball grows on the ground in woodlands under trees, on roadsides, in open areas, and even in urban areas. It is found from July through November usually in clusters. It is shaped like an upside-down pear, with a broad, round or flattened top and a narrowed stem-like base. Its white surface is densely covered with small, white, cone-shaped spines and more numerous tiny, white spines and granules between them. The spines are easily rubbed off and as the puffball matures they turn brown and fall off, the large ones leaving conspicuous pockmarks. A raised pore forms on the top of the maturing puffball. When ripe the pore ruptures, exposing the spore mass. Pores are disbursed through the opening by wind, rain drops, falling twigs, and curious hikers.
Common Puffball is edible when firm and white but is bland and may be bitter.