Fibonacci Numbers and Branching Plants

Plant Branching Fibonacci

One plant in particular shows the Fibonacci numbers in the number of "growing points" that it has. Suppose that when a plant puts out a new shoot, that shoot has to grow two months before it is strong enough to support branching. If it branches every month after that at the growing point, we get the picture shown here.

A plant that grows very much like this is the "sneezewort": Achillea ptarmica.

13, 21, 34, 55, 89, 144, 233, 377, 610, 987 ..More..

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