Juncus vs liliopsid genus

Juncus and liliopsid genus both are nouns.

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

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

Juncus: type genus of the Juncaceae; perennial tufted glabrous marsh plants of temperate regions: rushes
liliopsid genus: genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Juncus include monocot genus.

Juncus (noun)	liliopsid genus (noun)
type genus of the Juncaceae; perennial tufted glabrous marsh plants of temperate regions: rushes	genus of flowering plants having a single cotyledon (embryonic leaf) in the seed