- corolla - (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"
--1 is a kind of coil, whorl, roll, curl, curlicue, ringlet, gyre, scroll
--1 is a part of
--1 has parts: petal, flower petal; coronaperianth, chlamys, floral envelope, perigone, perigonium