What kind of mushroom is this? I live near Nazareth, PA and this is growing in my yard. At first I thought it was a puffball mushroom, but then it changed shape. It is 7.5 to 8 inches across and is mostly flat on top. I'll send another email with the picture that my husband took of it previously. thanks, Gayle
Northampton County Pennsylvania
Identifying mushrooms is complicated and not easy to do as explained in this fact sheet from Penn State University.
Mushrooms are plants although they do not contain chlorophyll. They are the fruiting bodies of fungi that live below the soil surface. Fungi are a vital part of a healthy soil ecosystem. It's a misconception that mushrooms are a sign of soil problems. One of the main reasons to remove them are to keep children and pets from eating them. Never eat an unidentified mushroom as some are poisonous to humans and pets. You can read more about them in these links.
Some other information you might find interesting.