liverwort vs scale moss

liverwort and scale moss both are nouns.

Word	Noun	Adjective	Verb	Adverb
liverwort	Yes	No	No	No
scale moss	Yes	No	No	No

As nouns, scale moss is a hyponym of liverwort; that is, scale moss is a word with a more specific, narrower meaning than liverwort:

liverwort: any of numerous small green nonvascular plants of the class Hepaticopsida growing in wet places and resembling green seaweeds or leafy mosses
scale moss: moss-like liverwort with tiny scalelike leaves; usually epiphytic

Other hyponyms of liverwort include hornwort, leafy liverwort, hepatica, Marchantia polymorpha.

liverwort (noun)	scale moss (noun)
any of numerous small green nonvascular plants of the class Hepaticopsida growing in wet places and resembling green seaweeds or leafy mosses	moss-like liverwort with tiny scalelike leaves; usually epiphytic