Synonymy:
Agaricus abruptus Peck, Mem. N.Y. St. Mus. 3(4): 163 (1900) [1899]

Psalliota abruptibulba (Peck) Kauffman, Michigan Geol. Biol. Surv. Publ., Ser. 5 26: 237 (1918)

Agaricus abruptibulbus var. nullicystidiatus M. Kaur & Harw. Kaur, in Kaur, Kaur & Malik, World Journal of Pharmacy and Pharmaceutical Sciences 5(7): 1525 (2016)

Position in classification:
Agaricus, Agaricaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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