gayfeather vs gay-feather

gayfeather and gay-feather both are nouns.

Word	Noun	Adjective	Verb	Adverb
gayfeather	Yes	No	No	No
gay-feather	Yes	No	No	No

As nouns, gayfeather and gay-feather are synonyms defined as:

gayfeather and gay-feather: any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads

Other synonyms of gayfeather include blazing star, button snakeroot, snakeroot.

gayfeather (noun)	gay-feather (noun)
any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads	any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads