[Unidentified Fungi East of the Cascade Mountains of Oregon and Washington]

Unidentified Puffball of Eastern Washington #1

Can you help verify the identity of the fungus shown below?

Unidentified puffball of Eastern Washington #1

Small puffballs as seen in scabland grasslands about one-half mile east of Odessa Craters, Lincoln County, Washington..............May 8, 2012.
Paul Slichter