brooklime vs European brooklime

brooklime and European brooklime both are nouns.

Word	Noun	Adjective	Verb	Adverb
brooklime	Yes	No	No	No
European brooklime	Yes	No	No	No

As nouns, brooklime and European brooklime are synonyms defined as:

brooklime and European brooklime: European plant having low-lying stems with blue flowers; sparsely naturalized in North America

Other synonyms of brooklime include Veronica beccabunga.

brooklime (noun)	European brooklime (noun)
plant of western North America and northeastern Asia having prostrate stems with dense racemes of pale violet to lilac flowers	European plant having low-lying stems with blue flowers; sparsely naturalized in North America
European plant having low-lying stems with blue flowers; sparsely naturalized in North America