Sporobolus vs Poaceae

Sporobolus and Poaceae both are nouns.

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

Sporobolus (noun)	Poaceae (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