genus Prunus vs mock orange

genus Prunus and mock orange both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Prunus	Yes	No	No	No
mock orange	Yes	No	No	No

genus Prunus (noun)	mock orange (noun)
a genus of shrubs and trees of the family Rosaceae that is widely distributed in temperate regions	large hardy shrub with showy and strongly fragrant creamy-white flowers in short terminal racemes
	small shrubby deciduous yellowwood tree of south central United States having spines, glossy dark green leaves and an inedible fruit that resembles an orange; its hard orange-colored wood used for bows by Native Americans; frequently planted as boundary hedge
	shrubby thorny deciduous tree of southeastern United States with white flowers and small black drupaceous fruit
	small flowering evergreen tree of southern United States