Helvella macropus is a species of fungus in the Helvellaceae family, Pezizales order. Ascocarps can be found in summer and autumn in woodland, usually (though not exclusively) associated with broad-leaved trees. The slender stem, up to 5 centimeters high, supports a cup shaped cap, the whole fruiting body being pale grey or brown, the inner (hymenial) surface of the cup usually being darker.