family Gramineae vs Sporobolus

family Gramineae and Sporobolus both are nouns.

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

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