Nerium oleander vs Nerium

Nerium oleander and Nerium both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nerium oleander	Yes	No	No	No
Nerium	Yes	No	No	No

Nerium oleander (noun)	Nerium (noun)
an ornamental but poisonous flowering shrub having narrow evergreen leaves and clusters of fragrant white to pink or red flowers: native to East Indies but widely cultivated in warm regions	one species: oleander