self-pollinating vs phytology

self-pollinating is not a noun while phytology is a noun.

Word	Noun	Adjective	Verb	Adverb
self-pollinating	No	Yes	No	No
phytology	Yes	No	No	No

self-pollinating (noun)	phytology (noun)
	the branch of biology that studies plants

self-pollinating (adjective)	phytology (adjective)
of or relating to or characteristic of self-pollination