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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.

Yellow Swamp BrittlegillRussula claroflava

edible

Yellow Swamp BrittlegillRussula claroflava

Photo: no rights reserved

Habitat

under birches

wetlands

mixed forests

Season

from July to October

Russulaceae

4–10 cm

Season

Out of seasonOut of season. It usually grows from early July to early October.

Today · 22–28 Octout of season

how often reportedpeak

Season

Jul–Oct

Peak

Jul–Sep

Reports

61from Poland, few

Curve from 61 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 bright chrome yellow to lemon, smooth, slightly sticky. Gills cream, stem white, flesh mild, characteristically turning gray to blackish when cut or damaged. Mycorrhizal with birch, often in damp places.

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