Agaricus bernardii
Agaricus bernardii is a stout, salt-tolerant mushroom of sandy coastal soils, salt marshes and lawns, which has spread inland along roadsides treated with de-icing salt. Fruit bodies sometimes form underground and push up through the soil. It is not a commonly cultivated species.
Where it grows wild
Saprobic in sandy soils, lawns, coastal grassland and salt marsh, and on salted roadside verges; sometimes in fairy rings.
Mostly coastal lowland; recorded at 0–1966 m (median 573 m), the higher records being roadsides.
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The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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More Agaricus
Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.