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Grzybiarz is a mobile app for mushroom foragers. Its on-device AI helps you spot fruiting bodies in the leaf litter and suggests a species from a photo, and the app keeps a private map of your finds. Everything runs on your phone and works fully offline in the forest without signal.

Green BrittlegillRussula aeruginea

edible

Green BrittlegillRussula aeruginea

Photo: (c) Mandy Hackney, some rights reserved (CC BY)

Habitat

under birches

mixed forests

deciduous forests

Season

from July to October

Russulaceae

4–10 cm

Season

EndingPast the peak. The season usually lasts until late October.

Today · 22–28 Oct60% of peak

how often reportedpeak

Season

Jul–Oct

Peak

Aug–Oct

Reports

195Poland and neighbours

Risk window

Death Cap grows at the same time

Both species grow together for about 14 wk a year. Most strongly from late August to late September.

Curve from 195 observations (GBIF: Poland, Czechia, Slovakia, Germany), smoothed week by week. It shows when foragers most often report the species, not how much of it grows.

Key features

Cap grass green to gray-green, smooth or slightly sticky, skin easily peeled halfway. Gills cream with rusty spots from spores, stem white, flesh mild or slightly burning. Mycorrhizal mainly with birch.

Similar (be careful)Confusions documented in our database

DeathcapAmanita phalloides

deadly

The Green Brittlegill has crumbly flesh that breaks easily 'like chalk' and no volva/ring; the Deathcap has fibrous flesh, a volva and a ring. Break the stem: a brittlegill snaps like chalk.

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