1. (coarse edible mushroom with a hollow stem and a broad white cap)
horse mushroom, Agaricus arvensis
synonim: pieczarka biaława
synonim: pieczarka polna

2. (common edible mushroom found naturally in moist open soil
the cultivated mushroom of commerce)
meadow mushroom, field mushroom, Agaricus campestris: : synonim: pieczarka łąkowa
synonim: pieczarka polna
synonim: pieczarka zwyczajna