Helvella macropus is a species of fungus in the family Helvellaceae of the order Pezizales.
Its ascocarps are found in summer and autumn in woodland, usually (though not exclusively) associated with broad-leaved trees.
[1] The whole fruiting body is pale grey or brown, with the smooth inner (hymenial) cup surface usually darker.
[1] Similar species include H. corium, H. cupuliformis, H. fibrosa, H. pezizoides, H. queleti, and Donadinia nigrella.
[6] Media related to Helvella macropus at Wikimedia Commons