The Common Puffball is a familiar woodland pear-shaped species, which is whitish and covered in small conical spines. It becomes brown with age, and can be easily confused with the Pestle Puffball. Like all puffballs, when mature it relies on raindrops to fall on the upper part of the fruit body. When this happens the raindrops act as a trigger for the fungus to release its spores through an opening in the top.
They are seen summer to autumn. Found in small clusters or scattered troops on the ground in coniferous or broadleaved woodland. A common and widespread species.