snakeroot vs wild flower

snakeroot and wild flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
snakeroot	Yes	No	No	No
wild flower	Yes	No	No	No

As nouns, wild flower is a hypernym of snakeroot; that is, wild flower is a word with a broader meaning than snakeroot:

snakeroot: any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads
wild flower: wild or uncultivated flowering plant

Other hypernyms of snakeroot include wildflower.

snakeroot (noun)	wild flower (noun)
a plant of the genus Sanicula having palmately compound leaves and unisexual flowers in panicled umbels followed by bristly fruit; reputed to have healing powers	wild or uncultivated flowering plant
any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads