flowerless vs flowering

flowerless is not a noun while flowering is a noun.

Word	Noun	Adjective	Verb	Adverb
flowerless	No	Yes	No	No
flowering	Yes	Yes	No	No

flowerless (noun)	flowering (noun)
	the time and process of budding and unfolding of blossoms
	a developmental process

flowerless (adjective)	flowering (adjective)
without flower or bloom and not producing seeds	when a plant is in a state of possessing one or multiple flowers and/or blooms