A medium-sized waxcap, domed when young, flattening out with age. Bright red, sticky, getting an orange edge with age. Gills red with a yellow edge. Stipe concolorous with cap, lighter at base. Common in unimproved grassland.

References: 
Boertmann, D. (2010 revised second edition) The Genus Hygrocybe
Wood, E. & Dunkelman, J. (2017) Grassland Fungi: a field guide
Hedger, J. & George, D. (2018) Lundy Fungi: a photographic guide
Harries, D. (2017) A Guide to Waxcaps in West Wales