Common Morel - Morchella esculenta

The Common Morel has fruitbodies with a single central hollow in the head and stem.  The head is rounded or oval, made up of irregular pits forming a honeycomb which is fully connected to the stem. The heads are pale brown, yellowish or darker brown, and the stem is paler. 

Morchella elata, the Black Morel, has a more conical head with longitudinal ridges and is usually darker.   The head of the Semifree Morel Morchella semilibera is attached to the stem only in the upper part.  Morels in other genus do not have a sngle central hollow in stem and head. 

Photograph in habitat; note substrate and associated tree species

Scrub, woodland, waste ground; under trees.  Often with elm, poplar or ash

https://www.first-nature.com/fungi/morchella-esculenta.php