Lizzie's Lake - Pitcher Plant - III

Flowers and seeds

Cutaway view of a Sarracenia flower

Flowers are produced early in spring, with or slightly ahead of the first pitchers. They are held singly on long stems, generally well above the pitcher traps to avoid the trapping of potential pollinators. The flowers, which depending on species are 3–10 centimeters in diameter, are dramatic and have an elaborate design which prevents self-pollination. It consists of five sepals superintended by three bracts, numerous anthers, and an umbrella-like five-pointed style, over which five long yellow or red petals dangle. The whole flower is held upside-down, so that the umbrella-like style catches the pollen dropped by the anthers. The stigmas are located at the tips of the umbrella-like style. The primary pollinators are bees. Bees searching for nectar must force their way past one of the stigmas to enter the chamber formed by the style. Inside, they will inevitably come in contact with a lot of pollen, both from the hanging anthers and from the pollen collected by the style. Upon exiting, the bees must force their way under one of the flap-like petals. This keeps them away from the stigma, avoiding self-pollination. The next flower visited receives on its stigmata some of the first flower's pollen, and the cycle continues.

https://en.wikipedia.org/wiki/Sarracenia