pyracanth vs fire thorn

pyracanth and fire thorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyracanth	Yes	No	No	No
fire thorn	Yes	No	No	No

As nouns, pyracanth and fire thorn are synonyms defined as:

pyracanth and fire thorn: any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries

Other synonyms of pyracanth include firethorn, Pyracantha.

pyracanth (noun)	fire thorn (noun)
any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries	any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries