Iris florentina vs bearded iris

Iris florentina and bearded iris both are nouns.

Word	Noun	Adjective	Verb	Adverb
Iris florentina	Yes	No	No	No
bearded iris	Yes	No	No	No

As nouns, bearded iris is a hypernym of Iris florentina; that is, bearded iris is a word with a broader meaning than Iris florentina:

Iris florentina: German iris having large white flowers with lavender-tinged falls and a fragrant rhizome
bearded iris: any of numerous wild or cultivated irises with hairlike structures on the falls (the drooping sepals)

Iris florentina (noun)	bearded iris (noun)
German iris having large white flowers with lavender-tinged falls and a fragrant rhizome	any of numerous wild or cultivated irises with hairlike structures on the falls (the drooping sepals)