common valerian vs garden heliotrope

common valerian and garden heliotrope both are nouns.

Word	Noun	Adjective	Verb	Adverb
common valerian	Yes	No	No	No
garden heliotrope	Yes	No	No	No

As nouns, common valerian and garden heliotrope are synonyms defined as:

common valerian and garden heliotrope: tall rhizomatous plant having very fragrant flowers and rhizomes used medicinally

Other synonyms of common valerian include Valeriana officinalis.

common valerian (noun)	garden heliotrope (noun)
tall rhizomatous plant having very fragrant flowers and rhizomes used medicinally	tall rhizomatous plant having very fragrant flowers and rhizomes used medicinally