Epipactis vs liliopsid genus

Epipactis and liliopsid genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Epipactis	Yes	No	No	No
liliopsid genus	Yes	No	No	No

As nouns, liliopsid genus is a hypernym of Epipactis; that is, liliopsid genus is a word with a broader meaning than Epipactis:

Epipactis: genus of hardy orchids with leafy-bracted racemes of greenish or purplish irregular flowers
liliopsid genus: genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Epipactis include monocot genus.

Epipactis (noun)	liliopsid genus (noun)
genus of hardy orchids with leafy-bracted racemes of greenish or purplish irregular flowers	genus of flowering plants having a single cotyledon (embryonic leaf) in the seed