Brunfelsia americana vs lady-of-the-night

Brunfelsia americana and lady-of-the-night both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brunfelsia americana	Yes	No	No	No
lady-of-the-night	Yes	No	No	No

As nouns, Brunfelsia americana and lady-of-the-night are synonyms defined as:

Brunfelsia americana and lady-of-the-night: West Indian shrub with fragrant showy yellowish-white flowers

Brunfelsia americana (noun)	lady-of-the-night (noun)
West Indian shrub with fragrant showy yellowish-white flowers	West Indian shrub with fragrant showy yellowish-white flowers