A medium‑sized, white to pale cream parasol mushroom with free gills, a persistent ring, and a white spore print. Common in lawns, gardens, parks, and disturbed ground. Often mistaken for a small Macrolepiota or a pale Agaricus, but never bruises yellow and never develops pink or brown gills.

Cap: 40-120 mm, convex, becoming plano­convex or slightly uplifted. Surface smooth, silky, or finely fibrillose, usually pure white but sometimes cream or faintly buff at the center. Margins are sometimes slightly striate when thin-fleshed. Flesh white, not reddening or yellowing when cut.
Gills: Free, crowded, broad. White, remaining pale throughout development. Edges smooth. Do not turn green (separates from Chlorophyllum molybdites) and do not darken (separates from Agaricus).
Stipe: 60-120 x 8-15 mm, slender to moderately stout, equal, or slightly bulbous. Surface white, smooth, or faintly fibrillose. Ring thin but persistent, usually superior. Flesh white and unchanging.
Bruises brown when damaged