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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.

Armillaria melleaArmillaria mellea

conditionally edible

Armillaria melleaArmillaria mellea

Photo: (c) Anisha Kumra, some rights reserved (CC BY)

Habitat

deciduous forests

mixed forests

under oaks

beech forests

Season

from September to November

Physalacriaceae

3–15 cm

Season

At its peakThe peak lasts until early November and the season usually until late November.

Today · 22–28 Oct100% of peak

how often reportedpeak

Season

Sep–Nov

Peak

Oct–Nov

Reports

691Poland and neighbours

Risk window

Sulphur Tuft grows at the same time

Both species grow together for about 10 wk a year. Most strongly from mid-October to late October.

Curve from 691 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 honey yellow to brown with fine dark scales in the central part; grows in clusters at the base of deciduous trees. Gills whitish, running down the stem; stem with a white ring; must be parboiled.

Similar (be careful)Confusions documented in our database

Sulphur TuftHypholoma fasciculare

toxic

The Honey Mushroom has a ring on the stem, a honey/brown cap and cream gills; the Sulphur Tuft has NO ring, has yellow-green caps, greenish gills and an extremely bitter taste.

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