Species details

Yellow swamp brittlegill

Russula claroflava

Traditionally edible
Yellow swamp brittlegill – Russula claroflava

Photo: Luridiformis at en.wikipedia · CC BY 3.0 · Photo source · License

Description

A bright yellow Russula of damp birch habitats with a white stem that greys markedly with age and handling.

Identification features

The cap is 4–10 cm wide, intensely yellow with partly peelable skin. Gills start white, become slightly yellowish and grey with age. The white stem later turns ash grey.

Identification checklist

Check the bright yellow cap, damp birch habitat, mild taste and strong greying of stem and flesh with age.

Detailed features

Cap
The cap is 4–10 cm wide, intensely yellow with partly peelable skin.
Hymenophore
Gills start white, become slightly yellowish and grey with age.
Stem
The white stem later turns ash grey.

Size

Cap diameter
4–10 cm

Habitat

Grows in groups on damp ground with birch, sometimes alder, in summer and autumn; not common.

Fruiting period

July, August, September, October

Ecology

Host trees
Birch (Betula), Alder (Alnus)
Soil
Moist
Notes
Grows in groups on damp ground with birch, sometimes alder, in summer and autumn; not common.

How to separate similar species

Russula ochroleuca and Russula solaris may also be yellow but are acrid or inedible. Yellow colour alone is therefore insufficient.

Similar species

Extended-description sources