gay-feather vs gayfeather

gay-feather and gayfeather both are nouns.

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

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

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

Other synonyms of gay-feather include blazing star, button snakeroot, snakeroot.

gay-feather (noun)	gayfeather (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