- calyx - (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green
--1 is a kind of coil, whorl, roll, curl, curlicue, ringlet, gyre, scroll
--1 is a part of
--1 has part: sepalperianth, chlamys, floral envelope, perigone, perigonium
--1 has particulars: hull; pappus