A foraging companion

Find.
Identify.
Save.

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.

Species atlas
Funeral BellGalerina marginata
deadly poisonous
Funeral BellGalerina marginata
Photo: (c) Lucian Clanet, some rights reserved (CC BY)
Habitat
mixed forests
under pines
under spruce
deciduous forests
Season
from August to December
Hymenogastraceae
1–4 cm
Season
At its peakThe peak lasts until late November and the season usually until mid-December.
Today · 29 Oct–4 Nov100% of peak
how often reportedpeak
Season
Aug–Dec
Peak
Oct–Nov
Reports
586Poland and neighbours
Risk window
Smoky-gilled Hypholoma grows at the same timeBoth species grow together for about 12 wk a year. Most strongly from mid-October to early November.
Łysiczka zmiennaIn the forest together about 10 wk a year.
Płomiennica zimowaIn the forest together about 6 wk a year.
Curve from 586 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
Small mushroom with a honey-brown, hygrophanous cap that pales from the center as it dries. Gills rusty brown; stem with a narrow, quickly disappearing ring and a silky coating below it. Contains amanitins, the same as the Deathcap. Grows in clusters on dead wood, including coniferous wood.
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Grzybiarz
Grzybiarz is a foraging assistant; the decision to harvest is yours.
© 2026 GrzybiarzVersion 0.0.1 · f66d236
Hełmówka jadowita (Galerina marginata) — Deadly · Grzybiarz