genus Thunbergia vs black-eyed Susan

genus Thunbergia and black-eyed Susan both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Thunbergia	Yes	No	No	No
black-eyed Susan	Yes	No	No	No

genus Thunbergia (noun)	black-eyed Susan (noun)
a genus of herbs or vines of the family Acanthaceae	the state flower of Maryland; of central and southeastern United States; having daisylike flowers with dark centers and yellow to orange rays
	tropical African climbing plant having yellow flowers with a dark purple center
	annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America