Perianth

The typical daylily flower consists of a tube with six colored perianth segments arranged in two rows called whorls. The inner whorl of segments are the petals, and the outer are the sepals.  These segments are also sometimes referred to collectively as tepals.  The base of the perianth tube is attached to the scape by its own individual small stem called a pedicel.  Botanically, this form of flower is referred to as gamopetalous. Also see: Perianth tube