wood cudweed vs Gnaphalium sylvaticum

wood cudweed and Gnaphalium sylvaticum both are nouns.

Word	Noun	Adjective	Verb	Adverb
wood cudweed	Yes	No	No	No
Gnaphalium sylvaticum	Yes	No	No	No

As nouns, wood cudweed and Gnaphalium sylvaticum are synonyms defined as:

wood cudweed and Gnaphalium sylvaticum: weedy perennial of north temperate regions having woolly foliage and dirty white flowers in a leafy spike

Other synonyms of wood cudweed include chafeweed.

wood cudweed (noun)	Gnaphalium sylvaticum (noun)
weedy perennial of north temperate regions having woolly foliage and dirty white flowers in a leafy spike	weedy perennial of north temperate regions having woolly foliage and dirty white flowers in a leafy spike