smooth lip fern vs lipfern

smooth lip fern and lipfern both are nouns.

Word	Noun	Adjective	Verb	Adverb
smooth lip fern	Yes	No	No	No
lipfern	Yes	No	No	No

As nouns, lipfern is a hypernym of smooth lip fern; that is, lipfern is a word with a broader meaning than smooth lip fern:

smooth lip fern: southeastern United States to northern Mexico and Jamaica
lipfern: any of various terrestrial ferns of the genus Cheilanthes; cosmopolitan in arid and semiarid temperate or tropical regions

Other hypernyms of smooth lip fern include lip fern.

smooth lip fern (noun)	lipfern (noun)
southeastern United States to northern Mexico and Jamaica	any of various terrestrial ferns of the genus Cheilanthes; cosmopolitan in arid and semiarid temperate or tropical regions