Gyromitra

noun

Gy·​ro·​mi·​tra ˌjī-rō-ˈmī-trə  ˌjir-ə- 

: a genus of ascomycetous fungi (family Helvellaceae) that are usually poisonous and often deadly when eaten and that typically have a cap which is either wavy and bumpy or has convolutions resembling a brain see false morel