Hello,
I just want to confirm that what is naturally growing in our backyard (South shore of Montreal, QC) is Giant Puffball/Calvatia gigantea .
From everything I read it seems it doesn't really have a twin that is difficult to differentiate.
We have a lot as you can see and they are in different phases - the one is already completely black and spreading spores from the top and the other one is almost there.
Thank you in advance,