teasle vs teazel

teasle and teazel both are nouns.

Word	Noun	Adjective	Verb	Adverb
teasle	Yes	No	No	No
teazel	Yes	No	No	No

As nouns, teasle and teazel are synonyms defined as:

teasle and teazel: any of several herbs of the genus Dipsacus native to the Old World having flower heads surrounded by spiny bracts

Other synonyms of teasle include teasel.

teasle (noun)	teazel (noun)
any of several herbs of the genus Dipsacus native to the Old World having flower heads surrounded by spiny bracts	any of several herbs of the genus Dipsacus native to the Old World having flower heads surrounded by spiny bracts