The meadow mushroom is an edible mushroom that is closely related to the cultivated “button mushroom” (Agaricus bisporus). It is readily recognisable by its bright pink gills (covered by a thin white membrane when the mushroom is young), which become chocolate brown as the mushroom matures. The whitish cap is 3 to 11 centimetres in diameter and can be smooth and glossy or fibrous and scaly. The stem is 2 to 6 centimetres long and between 1 and 2.5 centimetres thick, with a quickly collapsing white ring. The flesh is thick and white throughout, even at the base of the stem, very rarely discolouring to a pinkish wine shade in wet weather.
The meadow mushroom grows alone or in "fairy rings", circles of mushrooms where each season new mushrooms grow at the edge of the space filled the previous season, in meadows and fields or on lawns and grassy areas.