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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.

False MorelGyromitra esculenta

deadly poisonous

False MorelGyromitra esculenta

Photo: no rights reserved

Habitat

under pines

under spruce

mixed forests

Season

from March to May

Discinaceae

4–15 cm

Season

Out of seasonOut of season. It usually grows from late March to mid-May.

Today · 22–28 Octout of season

how often reportedpeak

Season

Mar–May

Peak

Apr–May

Reports

196from Poland, few

Risk window

Veined Cup grows at the same time

Both species grow together for about 8 wk a year. Most strongly from early April to late April.

Smardz jadalnyIn the forest together about 7 wk a year.

Smardz stożkowatyIn the forest together about 7 wk a year.

Smardz wyniosłyIn the forest together about 7 wk a year.

Curve from 196 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 folded like a brain, irregularly convoluted like a walnut, chestnut to dark brown, without pits or ribs. Stem short, white to pinkish, with numerous chambers inside (not hollow as in a morel); contains gyromitrin, which is carcinogenic and potentially deadly despite traditional consumption after repeated blanching.

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