Rumex obtusifolius vs yellow dock

Rumex obtusifolius and yellow dock both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rumex obtusifolius	Yes	No	No	No
yellow dock	Yes	No	No	No

As nouns, Rumex obtusifolius and yellow dock are synonyms defined as:

Rumex obtusifolius and yellow dock: European dock with broad obtuse leaves and bitter rootstock common as a weed in North America

Other synonyms of Rumex obtusifolius include bitter dock, broad-leaved dock.

Rumex obtusifolius (noun)	yellow dock (noun)
European dock with broad obtuse leaves and bitter rootstock common as a weed in North America	European dock with broad obtuse leaves and bitter rootstock common as a weed in North America