Bovista pachydermica Calvatia pachydermica is a species of puffball mushroom native to southernmost South America.

[1] Originally described in 1887 as Bovista pachydermica from a specimen collected in 1882 at Tierra Del Fuego in Argentina near Punta Arenas in Chile,[2]: 438  this puffball was moved to the genus Calvatia in 1992.

[3][2] Most collections of this species have been made from southernmost Chile.

[2]: 438 German mycologist Hanns Kreisel placed it in Calvatia sect.

Cretacea, which is a grouping characterized by "Exoperidium spiny or areolate.