the arrangement of florets within this cluster is typically such that each is separated from the next by approximately
-the golden angle-
producing a pattern of spirals where the number of left spirals and the number of right spirals are successive Fibonacci numbers.
typically, there are 34 spirals in one direction and 55 in the other; on a very large sunflower you may see 89 in one direction and 144 in the other.
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