Phyllo

137.5°. one number, every sunflower.

pack seeds by one angle — perfection lives at 137.5° exactly

One divergence angle, 137.508°, packs seeds with no wasted gaps and no spokes, because it comes from the golden ratio — the number that resists being approximated by any simple fraction, so seeds never fall into repeating lines. Sunflowers, pinecones, and pineapples all converge on this exact angle without any brain cells at all.

Concepts: phyllotaxis, symmetry.

An interactive you play with one thumb, on Wundr.