sweetbriar vs sweetbrier

sweetbriar and sweetbrier both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweetbriar	Yes	No	No	No
sweetbrier	Yes	No	No	No

As nouns, sweetbriar and sweetbrier are synonyms defined as:

sweetbriar and sweetbrier: Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips

Other synonyms of sweetbriar include briar, brier, eglantine, Rosa eglanteria.

sweetbriar (noun)	sweetbrier (noun)
Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips	Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips