Morchella semilibera vs half-free morel

Morchella semilibera and half-free morel both are nouns.

Word	Noun	Adjective	Verb	Adverb
Morchella semilibera	Yes	No	No	No
half-free morel	Yes	No	No	No

As nouns, Morchella semilibera and half-free morel are synonyms defined as:

Morchella semilibera and half-free morel: a morel with the ridged and pitted fertile portion attached to the stipe for about half its length

Other synonyms of Morchella semilibera include cow's head.

Morchella semilibera (noun)	half-free morel (noun)
a morel with the ridged and pitted fertile portion attached to the stipe for about half its length	a morel with the ridged and pitted fertile portion attached to the stipe for about half its length