A foraging companion

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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.

Species atlas
BlusherAmanita rubescens
conditionally edible
BlusherAmanita rubescens
Photo: (c) Oleksii Vasyliuk, some rights reserved (CC BY)
Habitat
mixed forests
deciduous forests
under spruce
under pines
under oaks
beech forests
Season
from June to October
Amanitaceae
5–15 cm
Season
Out of seasonOut of season. It usually grows from late June to mid-October.
Today · 22–28 Octout of season
how often reportedpeak
Season
Jun–Oct
Peak
Jul–Sep
Reports
991from Poland
Risk window
Death Cap grows at the same timeBoth species grow together for about 13 wk a year. Most strongly from mid-August to mid-September.
Muchomor plamistyIn the forest together about 13 wk a year.
Muchomor czerwonyIn the forest together about 7 wk a year.
Curve from 991 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 pinkish brown to wine red, covered with grayish, dirty pink warts from the veil; margin not striate. Stem white and pink with a striate ring and a weakly developed bulbous base; when cut and where damaged, the flesh clearly turns pink, eventually red, which is a diagnostic feature. Poisonous raw (hemolysins), edible only after thorough heat treatment.
Similar (be careful)Confusions documented in our database
DeathcapAmanita phalloides
deadly
The blusher has flesh that clearly turns red; the Deathcap does not redden, has an olive cap and a volva at the base. Press/cut the flesh.
Fly AgaricAmanita muscaria
toxic
The blusher has a PINKISH-BROWN cap with gray/pink scales and reddening flesh; the Fly Agaric has a bright red cap with white scales and does not change color.
PanthercapAmanita pantherina
toxic
The blusher has flesh that reddens when damaged and cream scales; the Panthercap has WHITE scales, its flesh does not redden, and its ring is smooth (without striations). Check the damaged flesh.
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Grzybiarz is a foraging assistant; the decision to harvest is yours.
© 2026 GrzybiarzVersion 0.0.1 · f66d236
Muchomor czerwieniejący (Amanita rubescens) — Conditional · Grzybiarz