Northern bedstraw vs Northern snow bedstraw

Northern bedstraw and Northern snow bedstraw both are nouns.

Word	Noun	Adjective	Verb	Adverb
Northern bedstraw	Yes	No	No	No
Northern snow bedstraw	Yes	No	No	No

As nouns, Northern bedstraw and Northern snow bedstraw are synonyms defined as:

Northern bedstraw and Northern snow bedstraw: North American stoloniferous perennial having white flowers; sometimes used as an ornamental

Other synonyms of Northern bedstraw include Galium boreale.

Northern bedstraw (noun)	Northern snow bedstraw (noun)
North American stoloniferous perennial having white flowers; sometimes used as an ornamental	North American stoloniferous perennial having white flowers; sometimes used as an ornamental