Community find

Field Mushroom

Agaricus campestris

Group

Gilled mushroom

Season

Commonly found from spring through autumn, especially after rain.

Habitat

Found in grassy areas, pastures, lawns, and meadows; often growing in rings or scattered groups. It is a saprobic species, deriving nutrients from decaying organic matter in the soil.

Key characteristics

The Field Mushroom typically has a white to brownish cap that can be convex or flattened, often with silky fibers or fine scales. The gills start pink and turn dark brown with age. The stem is white, often tapering slightly towards the base, and has a single, often fleeting, ring. Spore print is dark brown.

Look-alikes

Similar species include other Agaricus species (e.g., Agaricus xanthodermus which stains yellow and has a phenolic odor, unlike A. campestris). Also, species of Macrolepiota, Leucoagaricus, and Chlorophyllum (e.g., Chlorophyllum molybdites, which has green spores).

Ecological role

This mushroom is saprobic, meaning it plays a crucial role in decomposing organic matter in soils, recycling nutrients back into the ecosystem.