Tabular mushroom (Agaricus tabularis)
- Division: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Class: Agaricomycetes (Agaricomycetes)
- Subclass: Agaricomycetidae (Agaricomycetes)
- Order: Agaricales (Agaric or Lamellar)
- Family: Agaricaceae (Champignon)
- Genus: Agaricus (champignon)
- Type: Agaricus tabularis
Tabular mushroom (Agaricus tabularis) very rare in the deserts and semi-deserts of Kazakhstan, Central Asia, in the virgin steppes of Ukraine, as well as in North America (in the deserts of Colorado). Its discovery in the steppes of Ukraine is the first finding of this fungus on the territory of the European continent.
head 5-20 cm in diameter, very thick, fleshy, dense, semicircular, later convex-prostrate, sometimes flat in the center, whitish, whitish-gray, turns yellow when touched, cracking in the form of horizontally arranged in parallel rows of deep pyramidal cells, tabular-cellular , tabular-fissured (pyramidal cells are often covered with small appressed fibrous scales), sometimes smooth to the edge, with a tucked, later wavy prostrate, often with remnants of a bedspread, edge.
Pulp in tabular champignon it is white, above the plates and at the base of the stem does not change with age or turns slightly pink, turns yellow when touched, and turns yellow when dried in the herbarium.
spore powder dark brown.
Records narrow, free, black-brown in maturity.
Leg tabular champignon is thick, wide, dense, 4-7×1-3 cm, central, cylindrical, even, slightly tapering towards the base, full, white, whitish, silky fibrous, naked, with an apical simple wide lagging, later hanging, whitish, smooth above, fibrous ring below.