flower vs pistil

flower and pistil both are nouns.

Word	Noun	Adjective	Verb	Adverb
flower	Yes	No	Yes	No
pistil	Yes	No	No	No

flower (noun)	pistil (noun)
a plant cultivated for its blooms or blossoms	the female ovule-bearing part of a flower composed of ovary and style and stigma
reproductive organ of angiosperm plants especially one having showy or colorful parts
the period of greatest prosperity or productivity

flower (verb)	pistil (verb)
produce or yield flowers