With just a little moisture these fellows will appear anywhere, prairie, the river, your lawn.  These appeared overnight.

Coprinus Comatus (Shaggy Mane) Mushroom  (Day 1)

The same plants at three days.

Coprinus Comatus (Shaggy Mane) Mushroom  (Day 3)

The following two photos are the same plants at six days.

Coprinus Comatus (Shaggy Mane) Mushroom  (Day 6) Coprinus Comatus (Shaggy Mane) Mushroom  (Day 6)

Next Photo Previous Photo