genus Sporobolus vs family Gramineae

genus Sporobolus and family Gramineae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Sporobolus	Yes	No	No	No
family Gramineae	Yes	No	No	No

genus Sporobolus (noun)	family Gramineae (noun)
cosmopolitan annual and perennial grasses (as dropseed or rush grass)	the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane