[1] The Punjabia genus was created in 2020 by the German mycologists Dieter Wächter & Andreas Melzer when the Psathyrellaceae family was subdivided based on phylogenetic analysis.
[citation needed] The type species, Punjabia pakistanicus was previously known as Coprinellus pakistanicus after being classified by the mycologists Muhammad Usman and Abdul Nasir Khalid in 2018 from a discovery in Pakistan.
[3][4] The genus is named after the Pakistani province of Punjab where the type species was documented.
[2] Coprinellus pakistanicus was named for the location in which this species was discovered, Pakistan.
[4] Found in lowlands on moist soil under Acacia trees in Northern Pakistan.