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A cypress knee is a distinctive structure forming above the roots of a cypress tree of any of various species of the subfamily Taxodioideae. Their function is unknown, but they are generally seen on trees growing in swamps. Some scientists have thought they may help in oxygenation to the tree's roots or assist in anchoring the tree in the soft, muddy soil.

Knees are woody projections sent above the normal water level, roughly vertically from the roots, with a near-right-angle bend taking them vertically upward through water. One early assumption of their function was that they provided oxygen to the roots that grow in the low dissolved oxygen (DO) waters typical of a swamp, acting as pneumatophores: mangroves have similar adaptations. There is little actual evidence for this assertion; in fact, swamp-dwelling specimens whose knees are removed continue to thrive, and laboratory tests demonstrate that the knees are not effective at depleting oxygen in a sealed chamber. Despite t...

I am a landscape and nature photographer living in Choctaw, Oklahoma. I love to take pictures of any scene that catches my eye. I spend most of my time at work, but enjoy my time taking photos from anywhere that I might be at the time. If you look hard enough you can find a picture in anything and anywhere. I love to travel to new places with my family and use my camera to remember where I have been and how beautiful it was. I really enjoy the Smokey Mountains, Arizona, Kentucky, and Texas.I can't wait to see even more and find more places to photograph.