This mathematical illustration of a sunflower is made of fourteen regular heptagons, fourteen irregular pentagons, and a single tetradecagon.
Sunflower Fourteen
RobertLovesPi.net
Polyhedra, tessellations, and more.
This mathematical illustration of a sunflower is made of fourteen regular heptagons, fourteen irregular pentagons, and a single tetradecagon.
RobertLovesPi.net 
I didn’t know regular heptagons (yellow) can be arranged in circle without gaps and overlays.
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I didn’t know it would work, either, until I tried it.
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