brain mushroom

Noun brain mushroom has 1 sense

• brain mushroom(n = noun.plant) beefsteak morel, gyromitra esculenta - a poisonous gyromitra; the surface of the fertile body is smooth at first and becomes progressively undulating and wrinkled (but never truly pitted); color varies from dull yellow to brown;
is a member of genus gyromitra
is a kind of gyromitra