In Poland, mushroom picking is barred in national parks, most nature reserves and military areas. State Forests also list places where entry is permanently prohibited: young plantations under four metres tall, experimental plots, seed stands, wildlife refuges, river and stream headwaters, and areas at risk of erosion.
Temporary forest closures are marked with yellow signs and may be imposed for forestry work or fire danger. The source says entering a closed area can result in a 500-zloty fine.
More than 100 mushroom species in Poland receive full or partial legal protection, including some edible varieties. The rules prohibit not only picking protected mushrooms but also damaging them or deliberately disturbing the forest floor while searching. Picking protected species can bring a fine of up to 5,000 zlotys and, in extreme cases, arrest.
Other listed offences include littering, driving into a forest unlawfully and picking mushrooms in a prohibited area; the source gives a 500-zloty fine for these violations. Picking mushrooms or forest berries in a prohibited manner can bring a fine of up to 250 zlotys or a reprimand. There is no weight limit for personal-use picking in state forests, but commercial-scale collection requires an agreement with the forest district.