Agaricus xanthodermus var. xanthodermus Genevier

This cosmopolitan mushroom is probably  the most common Agaricus species in the lawns of suburban California. Apparently it is the quite frequent elsewhere in the World, acting like a weed when one is looking for the edible members of the genus. According to some sources it is mildly poisonous -- I consider it not consumable due the horrific phenol odor, which is amplified dramatically during cooking (personal experience).

European collections