reseda vs dyer's rocket

reseda and dyer's rocket both are nouns.

Word	Noun	Adjective	Verb	Adverb
reseda	Yes	No	No	No
dyer's rocket	Yes	No	No	No

As nouns, dyer's rocket is a hyponym of reseda; that is, dyer's rocket is a word with a more specific, narrower meaning than reseda:

reseda: any plant of the genus Reseda
dyer's rocket: European mignonette cultivated as a source of yellow dye; naturalized in North America

Other hyponyms of reseda include mignonette, Reseda odorata, sweet reseda, dyer's mignonette, Reseda luteola, weld.

reseda (noun)	dyer's rocket (noun)
any plant of the genus Reseda	European mignonette cultivated as a source of yellow dye; naturalized in North America