genus Juncus vs monocot genus

genus Juncus and monocot genus both are nouns.

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

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

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

Other hypernyms of genus Juncus include liliopsid genus.

genus Juncus (noun)	monocot 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