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
False Death-capAmanita citrina
inedible
False Death-capAmanita citrina
Photo: (c) Yves Bas, some rights reserved (CC BY)
Habitat
mixed forests
under pines
under spruce
under oaks
beech forests
Season
from July to November
Amanitaceae
4–10 cm
Season
EndingPast the peak. The season usually lasts until early November.
Today · 22–28 Oct74% of peak
how often reportedpeak
Season
Jul–Nov
Peak
Sep–Oct
Reports
801from Poland
Curve from 801 observations (iNaturalist, Poland), smoothed week by week. It shows when foragers most often report the species, not how much of it grows.
Key features
Cap pale lemon yellow to whitish yellowish with large, flat, dirty white to brownish patches of veil; gills whitish. Stem white with a ring and a distinct, rounded bulbous base with a horizontal rim (a marginate bulb), without a saclike volva; the flesh smells of raw potatoes, a diagnostic smell that distinguishes it from the deadly Deathcap.
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Grzybiarz
Grzybiarz is a foraging assistant; the decision to harvest is yours.
© 2026 GrzybiarzVersion 0.0.1 · f66d236
Muchomor cytrynowy (Amanita citrina) — Inedible · Grzybiarz