Senna alata vs U.S.

Senna alata and U.S. both are nouns.

Word	Noun	Adjective	Verb	Adverb
Senna alata	Yes	No	No	No
U.S.	Yes	No	No	No

Senna alata (noun)	U.S. (noun)
tropical shrub (especially of Americas) having yellow flowers and large leaves whose juice is used as a cure for ringworm and poisonous bites; sometimes placed in genus Cassia	the executive and legislative and judicial branches of the federal government of the United States
	North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776