scouring rush vs rough horsetail

scouring rush and rough horsetail both are nouns.

Word	Noun	Adjective	Verb	Adverb
scouring rush	Yes	No	No	No
rough horsetail	Yes	No	No	No

As nouns, scouring rush and rough horsetail are synonyms defined as:

scouring rush and rough horsetail: evergreen erect horsetail with rough-edged stems; formerly used for scouring utensils

Other synonyms of scouring rush include Equisetum hyemale, Equisetum hyemale robustum, Equisetum robustum.

scouring rush (noun)	rough horsetail (noun)
evergreen erect horsetail with rough-edged stems; formerly used for scouring utensils	evergreen erect horsetail with rough-edged stems; formerly used for scouring utensils