where is it commonly found?
Mountainous areas in western North America
Calvatia sculpta
"C. sculpta" is found in mountainous areas in western North America, and was found in a Brazilian dune in 2008.
what is calvatia sculpta? A species of puffball fungus in the family Agaricaceae
wiki:6987822
Calvatia sculpta [SEP] Introduction
It may be easily confused with "Calbovista subsculpta", a similar puffball that—in addition to differences observable only with a microscope—is larger, and has slightly raised warts with a felt-like texture. Other similar species include "Calvatia arctica" and immature specimens of "Amanita magniverrucata".