pimpernel vs herbaceous plant

pimpernel and herbaceous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
pimpernel	Yes	No	No	No
herbaceous plant	Yes	No	No	No

As nouns, herbaceous plant is a hypernym of pimpernel; that is, herbaceous plant is a word with a broader meaning than pimpernel:

pimpernel: any of several plants of the genus Anagallis
herbaceous plant: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

Other hypernyms of pimpernel include herb.

As nouns, herbaceous plant is a hypernym of pimpernel; that is, herbaceous plant is a word with a broader meaning than pimpernel:

pimpernel: European garden herb with purple-tinged flowers and leaves that are sometimes used for salads
herbaceous plant: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

Other hypernyms of pimpernel include herb.

pimpernel (noun)	herbaceous plant (noun)
any of several plants of the genus Anagallis	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
European garden herb with purple-tinged flowers and leaves that are sometimes used for salads