Petasites fragrans vs winter heliotrope

Petasites fragrans and winter heliotrope both are nouns.

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

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

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

Other synonyms of Petasites fragrans include sweet coltsfoot.

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