Coptis groenlandica vs golden thread

Coptis groenlandica and golden thread both are nouns.

Word	Noun	Adjective	Verb	Adverb
Coptis groenlandica	Yes	No	No	No
golden thread	Yes	No	No	No

As nouns, Coptis groenlandica and golden thread are synonyms defined as:

Coptis groenlandica and golden thread: low-growing perennial of North America woodlands having trifoliate leaves and yellow rootstock and white flowers

Other synonyms of Coptis groenlandica include Coptis trifolia groenlandica, goldthread.

Coptis groenlandica (noun)	golden thread (noun)
low-growing perennial of North America woodlands having trifoliate leaves and yellow rootstock and white flowers	low-growing perennial of North America woodlands having trifoliate leaves and yellow rootstock and white flowers