Fractals are sometimes referred to as a “visual representation of math.” They can be observed in the spatial arrangements ...

The spiral is the most ... The uncoiling fronds are an advance guard, heralding the botanical abundance of summer. The royal ferns, the tree fern, the polystichums — they are all at it.

The spiral-shaped fiddlehead of a sprouting fern is formed by the petiole, or leaf stalk, as it unfurls into a frond. As the leaf stalk grows, each pinna, or leaflet, at first appears as its own ...