pyracanth vs Pyracantha

pyracanth and Pyracantha both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyracanth	Yes	No	No	No
Pyracantha	Yes	No	No	No

As nouns, pyracanth and Pyracantha are synonyms defined as:

pyracanth and Pyracantha: 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 fire thorn, firethorn.

pyracanth (noun)	Pyracantha (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