Horse Mushroom - Agaricus arvensis
Description
It can be recognised by the large, whitish cap up to 15 cm across, usually yellowing on the surface, the well-developed ring with cog-wheel like scales on the underside, the presence of dark spores when mature, and a pleasant aniseed like odour. The flesh usually stains yellow when cut or bruised.
Identification difficulty

Habitat
Grassland and other grassy places, fields and parks, on nutrient-rich soil.
When to see it
Late summer through autumn.
Life History
Sometimes grows in groups.
UK Status
A widespread and fairly common species in Britain.
VC55 Status
Fairly common in Leicestershire and Rutland.
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015