Silver duckweed: bald cypress and tupelo trees in water covered with duckweed. The duckweed is a tiny plant that completely covers the surface of the water. The slant of the sun makes the plant cover look silver. Phinizy Swamp is in Augusta, GA - it's part of the Southeastern Natural Sciences Academy.
Green duckweed: the same scene as the photo above, only shot from a different angle. The natural color of duckweed is bright green. The cypress knees stick up like nubs from the water. Part of the function of the knees is to get oxygen to the roots of the tree.
Duckweed up close. These are tiny floating green plants. There are a lot of tiny creatures in and around the duckweed, in the water: shrimplike animals, fish, insects. Maybe that's what the ducks like.
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