winter heliotrope vs Petasites fragrans

winter heliotrope and Petasites fragrans both are nouns.

Word	Noun	Adjective	Verb	Adverb
winter heliotrope	Yes	No	No	No
Petasites fragrans	Yes	No	No	No

As nouns, winter heliotrope and Petasites fragrans are synonyms defined as:

winter heliotrope and Petasites fragrans: European herb with vanilla-scented white-pink flowers

Other synonyms of winter heliotrope include sweet coltsfoot.

winter heliotrope (noun)	Petasites fragrans (noun)
European herb with vanilla-scented white-pink flowers	European herb with vanilla-scented white-pink flowers