verticil vs ringlet

verticil and ringlet both are nouns.

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

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

verticil: a whorl of leaves growing around a stem
ringlet: 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, gyre, roll, scroll, whorl.

verticil (noun)	ringlet (noun)
a whorl of leaves growing around a stem	any of various butterflies belonging to the family Satyridae
	a little ring
	lock of hair in the shape of a spiral or curl
	a round shape formed by a series of concentric circles (as formed by leaves or flower petals)