Species details

Oak milkcap

Lactarius quietus

Inedible
Oak milkcap – Lactarius quietus

Photo: Tomas Čekanavičius · CC BY-SA 3.0 · Photo source · License

Description

A brownish milkcap with a faintly zoned cap and characteristic smell, closely associated with oak.

Identification features

Latex is white and changes little in colour; taste is usually mild to slightly bitter.

Identification checklist

Check the entire fruitbody for identification. A brownish milkcap with a faintly zoned cap and characteristic smell, closely associated with oak. Latex is white and changes little in colour; taste is usually mild to slightly bitter. Typical habitat: Deciduous woodland and parks with oak.

Detailed features

Cap
3–10 cm, reddish- to cinnamon-brown, slightly sticky when young then dry, often with blurred darker zones and a depressed centre.
Hymenophore
Gills grey-reddish to cinnamon-brown, crowded and slightly decurrent; latex is pale.
Stem
3–6 × 0.5–1.2 cm, pale brown to cinnamon-brown, firm and later hollow.
Flesh
Pale reddish to whitish; latex is pale yellowish and somewhat bitter.
Smell
Characteristically unpleasant, bug- or insect-like.
Spore print
Pale yellowish.

Size

Cap diameter
3–10 cm
Stem height
3–6 cm
Stem diameter
0,5–1,2 cm

Habitat

Deciduous woodland and parks with oak.

Fruiting period

July, August, September, October, November

Ecology

Trophic mode
Mycorrhizal
Host trees
Oak (Quercus)
Substrate
Forest soil
Notes
Very characteristically associated with oak and common in oak and other broadleaved woodland.

How to separate similar species

Compare especially with these similar species: Lactarius torminosus, Lactarius pubescens. Check the combination of cap shape and colour, spore-bearing surface, stem, flesh changes and habitat. A single feature or photograph is not enough; if the key characters do not match the description, do not treat the identification as confirmed.

Similar species

  • Lactarius subdulcis

    Mild milkcap is usually smaller, unzoned and has white latex.

  • Bearded milkcap (Lactarius pubescens)

    Downy milkcap is much paler and young specimens have a distinctly hairy or woolly cap margin.

Interesting facts

Did you know? Its association with oak is so characteristic that the host tree is one of the most useful field clues.

Extended-description sources