genus Caesalpinia vs bird of paradise

genus Caesalpinia and bird of paradise both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Caesalpinia	Yes	No	No	No
bird of paradise	Yes	No	No	No

genus Caesalpinia (noun)	bird of paradise (noun)
small spiny tropical trees or shrubs; includes the small genus or subgenus Poinciana	any of numerous brilliantly colored plumed birds of the New Guinea area
	ornamental plant of tropical South Africa and South America having stalks of orange and purplish-blue flowers resembling a bird
	a tropical flowering shrub having bright orange or red flowers; sometimes placed in genus Poinciana