bishop's hat vs Epimedium grandiflorum

bishop's hat and Epimedium grandiflorum both are nouns.

Word	Noun	Adjective	Verb	Adverb
bishop's hat	Yes	No	No	No
Epimedium grandiflorum	Yes	No	No	No

As nouns, bishop's hat and Epimedium grandiflorum are synonyms defined as:

bishop's hat and Epimedium grandiflorum: slow-growing creeping plant with semi-evergreen leaves on erect wiry stems; used as ground cover

Other synonyms of bishop's hat include barrenwort.

bishop's hat (noun)	Epimedium grandiflorum (noun)
slow-growing creeping plant with semi-evergreen leaves on erect wiry stems; used as ground cover	slow-growing creeping plant with semi-evergreen leaves on erect wiry stems; used as ground cover