 Although very distinctive in appearance , the fly agaric has been mistaken for other yellow to red mushroom species in the Americas , such as <unk> <unk> <unk> and the edible Amanita <unk> — a Mexican species similar to A. caesarea of Europe . Poison control centres in the U.S. and Canada have become aware that <unk> ( Spanish for ' yellow ' ) is a common name for the A. caesarea @-@ like species in Mexico . Amanita caesarea can be distinguished by its entirely orange to red cap which lacks the numerous white <unk> spots of the fly agaric . Furthermore , the stem , gills and ring of A. caesarea are bright yellow , not white . The volva is a distinct white bag , not broken into scales . In Australia , the introduced fly agaric may be confused with the native <unk> <unk> ( Amanita <unk> ) , which grows in association with eucalypts . The latter species generally lacks the white warts of A. muscaria and bears no ring . 
