Huge, white, smooth ball; completely white interior becomes yellowish green with age. Grows in open pastures, woods, and lawns. May–October. Fruiting body round; outside white; inside pure white when fresh and young, yellowish green with age; outside texture smooth, soft, cracking irregularly; inside texture marshmallow-like; there is a rootlike attachment at the base. Spore print greenish brown. Spores magnified are round. A giant puffball can be very large — as big as a soccer ball or even much larger.
Lookalikes: Some other types of white mushrooms, including the deadly destroying angel (Amanita bisporigera), have stages in which they could be mistaken for a puffball. Make sure you cut through any puffball from top to bottom to confirm that it is pure white inside, like a marshmallow, with no sign of a cap or stem.
Habitat and Conservation
Mushrooms are a lot like plants, but they lack chlorophyll and have to take nutrients from other materials. Mushrooms are neither plants nor animals. They are in a different kingdom — the fungi. Fungi include the familiar mushroom-forming species, plus the yeasts, molds, smuts, and rusts.
Always be cautious when eating edible mushrooms. Be absolutely sure of the ID, and only eat a small amount the first time you try it to avoid a reaction..