swallow wort vs poppy

swallow wort and poppy both are nouns.

Word	Noun	Adjective	Verb	Adverb
swallow wort	Yes	No	No	No
poppy	Yes	No	No	No

As nouns, poppy is a hypernym of swallow wort; that is, poppy is a word with a broader meaning than swallow wort:

swallow wort: perennial herb with branched woody stock and bright yellow flowers
poppy: annual or biennial or perennial herbs having showy flowers

swallow wort (noun)	poppy (noun)
perennial herb with branched woody stock and bright yellow flowers	annual or biennial or perennial herbs having showy flowers