Reelfoot Lake NWR is known for its lily ponds. They should be famous for duckweed as well, since it grows any place where fishermen don't take their boats on a regular basis, resembling a smooth grassy lawn under the trees.
Reelfoot Lake is surprisingly shallow. Many places are 5 feet deep, and the deepest pools are only about 18 feet deep. The wind can blow up good sized whitecaps in a storm though. Many of the cypress trees growing away from the shore are remnants of a cypress forest that grew here before the 1812 earthquake that flooded the area and created the lake. The naturalist said that stumps under the water are still in good condition, while those which are exposed sometimes have rotted. It's hard to determine the age of the oldest trees, since the heart wood rots out leaving a large hollow in the middle, while the rest of the tree lives for many more years.
Bald Cypress trees are deciduous conifers, losing their needles in the winter. "Knees" grow up as part of the root system, giving more stability to their foundation in the soft unstable bottom land. The knees also help oxygenate the trees when their roots are under water.