corolla

nouns

(botany) the whorl of petals of a flower that collectively form an inner floral envelope or layer of the perianth
"we cultivate the flower for its corolla"
corolla
is a part of
collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
chlamys, floral envelope, perianth, perigone, perigonium
domain category
the branch of biology that studies plants
botany, phytology
is a type of (narrower)
a round shape formed by a series of concentric circles (as formed by leaves or flower petals)
coil, curl, curlicue, gyre, ringlet, roll, scroll, whorl