Common or Pestle Puffball please?

Common or Pestle Puffball please?

Observation - Common or Pestle Puffball please?. Description: Found in a grassy wasteland. Doesn't seem to have the warts like a Common Puffball but I'm just a beginner! Thanks.

Found in a grassy wasteland. Doesn't seem to have the warts like a Common Puffball but I'm just a beginner! Thanks.