briony vs bryony

briony and bryony both are nouns.

Word	Noun	Adjective	Verb	Adverb
briony	Yes	No	No	No
bryony	Yes	No	No	No

As nouns, briony and bryony are synonyms defined as:

briony and bryony: a vine of the genus Bryonia having large leaves and small flowers and yielding acrid juice with emetic and purgative properties

briony (noun)	bryony (noun)
a vine of the genus Bryonia having large leaves and small flowers and yielding acrid juice with emetic and purgative properties	a vine of the genus Bryonia having large leaves and small flowers and yielding acrid juice with emetic and purgative properties