pondweed vs monocot genus

pondweed and monocot genus both are nouns.

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

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

pondweed: submerged freshwater perennials
monocot genus: genus of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of pondweed include liliopsid genus.

pondweed (noun)	monocot genus (noun)
any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae	genus of flowering plants having a single cotyledon (embryonic leaf) in the seed
submerged freshwater perennials