flower vs floral envelope

flower and floral envelope both are nouns.

Word	Noun	Adjective	Verb	Adverb
flower	Yes	No	Yes	No
floral envelope	Yes	No	No	No

flower (noun)	floral envelope (noun)
a plant cultivated for its blooms or blossoms	collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
reproductive organ of angiosperm plants especially one having showy or colorful parts
the period of greatest prosperity or productivity

flower (verb)	floral envelope (verb)
produce or yield flowers