corolla

teriö puhekieltä An outermost-but-one whorl of a flower, composed of petals, when it is not the same in appearance as the outermost whorl (the calyx); it usually comprises the petal, which may be fused.
1974, (w), Monsieur, Faber & Faber 1992, p. 125:

Our wet fingers touched and we formed a circle like the corolla of a flower, floating into the silence of the desert dawn with the ancient sun on our bodies.