The flower then recedes below the water surface and on the following day emerges as a functionally male, or staminate flower. It is elevated higher than on the previous day and the anther-bearing filaments are extended beyond the female carpels.
On the following day, the flower retreats below the water surface and transforms into a functionally male (or staminate) flower. This new flower is elevated above its previous position, with the anther-bearing filaments extending further than the female carpels.