sour dock vs Rumex acetosa

sour dock and Rumex acetosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
sour dock	Yes	No	No	No
Rumex acetosa	Yes	No	No	No

As nouns, sour dock and Rumex acetosa are synonyms defined as:

sour dock and Rumex acetosa: European sorrel with large slightly acidic sagittate leaves grown throughout north temperate zone for salad and spring greens

Other synonyms of sour dock include garden sorrel.

sour dock (noun)	Rumex acetosa (noun)
European sorrel with large slightly acidic sagittate leaves grown throughout north temperate zone for salad and spring greens	European sorrel with large slightly acidic sagittate leaves grown throughout north temperate zone for salad and spring greens