yellow bedstraw vs Our Lady's bedstraw

yellow bedstraw and Our Lady's bedstraw both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow bedstraw	Yes	No	No	No
Our Lady's bedstraw	Yes	No	No	No

As nouns, yellow bedstraw and Our Lady's bedstraw are synonyms defined as:

yellow bedstraw and Our Lady's bedstraw: common yellow-flowered perennial bedstraw; North America and Europe and Asia

Other synonyms of yellow bedstraw include Galium verum, yellow cleavers.

yellow bedstraw (noun)	Our Lady's bedstraw (noun)
common yellow-flowered perennial bedstraw; North America and Europe and Asia	common yellow-flowered perennial bedstraw; North America and Europe and Asia