rough horsetail vs Equisetum hyemale robustum

rough horsetail and Equisetum hyemale robustum both are nouns.

Word	Noun	Adjective	Verb	Adverb
rough horsetail	Yes	No	No	No
Equisetum hyemale robustum	Yes	No	No	No

As nouns, rough horsetail and Equisetum hyemale robustum are synonyms defined as:

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

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

rough horsetail (noun)	Equisetum hyemale robustum (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