wild morning-glory vs Calystegia sepium

wild morning-glory and Calystegia sepium both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild morning-glory	Yes	No	No	No
Calystegia sepium	Yes	No	No	No

As nouns, wild morning-glory and Calystegia sepium are synonyms defined as:

wild morning-glory and Calystegia sepium: common Eurasian and American wild climber with pink flowers; sometimes placed in genus Convolvulus

Other synonyms of wild morning-glory include Convolvulus sepium, hedge bindweed.

wild morning-glory (noun)	Calystegia sepium (noun)
weakly climbing European perennial with white or pink flowers; naturalized in North America and an invasive weed	common Eurasian and American wild climber with pink flowers; sometimes placed in genus Convolvulus
common Eurasian and American wild climber with pink flowers; sometimes placed in genus Convolvulus