family Poaceae vs Sporobolus

family Poaceae and Sporobolus both are nouns.

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

family Poaceae (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)