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This bamboo stalk got snapped almost completely in half during a storm two years ago, and yet it still lives.
(lemmy.world)
I can't figure out how it could possibly be drawing enough nutrients to live, and yet there it is. I'd have chopped it up and dragged it away but now I'm impressed and want to see how long it goes on.
While it doesn't really apply to bamboo, this is kind of the way hedgerows are laid. The main trunk of the "tree" is cut most of the way through (called a pleacher), then laid on its side. New growth then sprouts from both the laid trunk, still getting nutrients from the stump, and the stump itself.
Check out coppice if you're more interested. It's pretty amazing what trees can do.
I was just about to mention this. I wonder if people have used bamboo to make hedgerows...