Geranium robertianum vs herb robert

Geranium robertianum and herb robert both are nouns.

Word	Noun	Adjective	Verb	Adverb
Geranium robertianum	Yes	No	No	No
herb robert	Yes	No	No	No

As nouns, Geranium robertianum and herb robert are synonyms defined as:

Geranium robertianum and herb robert: a sticky low herb with small reddish-purple flowers; widespread in the Northern Hemisphere

Other synonyms of Geranium robertianum include herb roberts, herbs robert.

Geranium robertianum (noun)	herb robert (noun)
a sticky low herb with small reddish-purple flowers; widespread in the Northern Hemisphere	a sticky low herb with small reddish-purple flowers; widespread in the Northern Hemisphere