Thursday, November 6, 2014

November is Beautiful: Senescence

My photographic journey today didn't take me anywhere exotic or new, instead I traveled to my "backyard" (the common area behind my apartment). In a bramble of shrubs and small trees, the patterns of the senescing leaves caught my eyes. Leaves senesce when the tree pulls back the nutrients from the leaves and down into the roots. In the process the chlorophyll is broken down, leaving only the orange, red, purple, and gold pigments (the anthocyanins and carotenoids) responsible for fall color. 

The leaves are not from the showy fall trees, but from species with more modest fall colors. 

Mulberry

Mulberry

Elm

Cottonwood

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