verticil vs gyre

verticil and gyre both are nouns.

Word	Noun	Adjective	Verb	Adverb
verticil	Yes	No	No	No
gyre	Yes	No	No	No

As nouns, gyre is a hypernym of verticil; that is, gyre is a word with a broader meaning than verticil:

verticil: a whorl of leaves growing around a stem
gyre: a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

Other hypernyms of verticil include coil, curl, curlicue, ringlet, roll, scroll, whorl.

verticil (noun)	gyre (noun)
a whorl of leaves growing around a stem	a round shape formed by a series of concentric circles (as formed by leaves or flower petals)