garden heliotrope vs common valerian

garden heliotrope and common valerian both are nouns.

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

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

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

Other synonyms of garden heliotrope include Valeriana officinalis.

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