sponge mushroom vs Morchella esculenta

sponge mushroom and Morchella esculenta both are nouns.

Word	Noun	Adjective	Verb	Adverb
sponge mushroom	Yes	No	No	No
Morchella esculenta	Yes	No	No	No

As nouns, sponge mushroom and Morchella esculenta are synonyms defined as:

sponge mushroom and Morchella esculenta: an edible and choice morel with a globular to elongate head with an irregular pattern of pits and ridges

Other synonyms of sponge mushroom include common morel, sponge morel.

sponge mushroom (noun)	Morchella esculenta (noun)
an edible and choice morel with a globular to elongate head with an irregular pattern of pits and ridges	an edible and choice morel with a globular to elongate head with an irregular pattern of pits and ridges