Chrysanthemum leucanthemum vs Leucanthemum vulgare

Chrysanthemum leucanthemum and Leucanthemum vulgare both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chrysanthemum leucanthemum	Yes	No	No	No
Leucanthemum vulgare	Yes	No	No	No

As nouns, Chrysanthemum leucanthemum and Leucanthemum vulgare are synonyms defined as:

Chrysanthemum leucanthemum and Leucanthemum vulgare: tall leafy-stemmed Eurasian perennial with white flowers; widely naturalized; often placed in genus Chrysanthemum

Other synonyms of Chrysanthemum leucanthemum include marguerite, moon daisy, ox-eyed daisy, oxeye daisy, white daisy.

Chrysanthemum leucanthemum (noun)	Leucanthemum vulgare (noun)
tall leafy-stemmed Eurasian perennial with white flowers; widely naturalized; often placed in genus Chrysanthemum	tall leafy-stemmed Eurasian perennial with white flowers; widely naturalized; often placed in genus Chrysanthemum