pipsissewa vs herbaceous plant

pipsissewa and herbaceous plant both are nouns.

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

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

pipsissewa: any of several plants of the genus Chimaphila
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 pipsissewa include herb.

pipsissewa (noun)	herbaceous plant (noun)
any of several plants of the genus Chimaphila	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests