false dragon head vs Physostegia virginiana

false dragon head and Physostegia virginiana both are nouns.

Word	Noun	Adjective	Verb	Adverb
false dragon head	Yes	No	No	No
Physostegia virginiana	Yes	No	No	No

As nouns, false dragon head and Physostegia virginiana are synonyms defined as:

false dragon head and Physostegia virginiana: North American plant having a spike of two-lipped pink or white flowers

Other synonyms of false dragon head include false dragonhead, obedient plant.

false dragon head (noun)	Physostegia virginiana (noun)
North American plant having a spike of two-lipped pink or white flowers	North American plant having a spike of two-lipped pink or white flowers