teasel vs teasle

teasel and teasle both are nouns.

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

As nouns, teasel and teasle are synonyms defined as:

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

Other synonyms of teasel include teazel.

teasel (noun)	teasle (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