The flowers of the plant are also unusual, with purple calyxes and white corollas. The drooping scarlet, or rarely white flowers, are capped by a red calyxes. The flowers have three petals and three calyxes and measure . The cupped calyxes are about long with five obtuse long lobes. The Kleophon Painter painted mostly large vases, especially calyxes. Of the 180 known vases that he painted, sixty-nine were calyxes.