shaggy cap vs shaggymane mushroom

shaggy cap and shaggymane mushroom both are nouns.

Word	Noun	Adjective	Verb	Adverb
shaggy cap	Yes	No	No	No
shaggymane mushroom	Yes	No	No	No

As nouns, shaggy cap and shaggymane mushroom are synonyms defined as:

shaggy cap and shaggymane mushroom: common edible mushroom having an elongated shaggy white cap and black spores

Other synonyms of shaggy cap include Coprinus comatus, shaggymane.

shaggy cap (noun)	shaggymane mushroom (noun)
common edible mushroom having an elongated shaggy white cap and black spores	common edible mushroom having an elongated shaggy white cap and black spores