chimney bellflower vs Campanula pyramidalis

chimney bellflower and Campanula pyramidalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
chimney bellflower	Yes	No	No	No
Campanula pyramidalis	Yes	No	No	No

As nouns, chimney bellflower and Campanula pyramidalis are synonyms defined as:

chimney bellflower and Campanula pyramidalis: bellflower of southeastern Europe

Other synonyms of chimney bellflower include chimney plant.

chimney bellflower (noun)	Campanula pyramidalis (noun)
bellflower of southeastern Europe	bellflower of southeastern Europe