snakeberry vs herb Christopher

snakeberry and herb Christopher both are nouns.

Word	Noun	Adjective	Verb	Adverb
snakeberry	Yes	No	No	No
herb Christopher	Yes	No	No	No

As nouns, herb Christopher is a hypernym of snakeberry; that is, herb Christopher is a word with a broader meaning than snakeberry:

snakeberry: North American perennial herb with alternately compound leaves and racemes of small white flowers followed by bright red oval poisonous berries
herb Christopher: a plant of the genus Actaea having acrid poisonous berries

Other hypernyms of snakeberry include baneberry, cohosh.

snakeberry (noun)	herb Christopher (noun)
North American perennial herb with alternately compound leaves and racemes of small white flowers followed by bright red oval poisonous berries	a plant of the genus Actaea having acrid poisonous berries