goldthread vs golden thread

goldthread and golden thread both are nouns.

Word	Noun	Adjective	Verb	Adverb
goldthread	Yes	No	No	No
golden thread	Yes	No	No	No

As nouns, goldthread and golden thread are synonyms defined as:

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

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

goldthread (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