The willows that adorn the banks of the river Oise drop their seeds en masse on a sunny evening in June, to be carried away in the current and the wind.
For a few days every summer the river Oise colors white with river water-crowfoot (Ranunculus fluitans) flowers. This plant's long stems grow almost completely submerged, but the flowers break the surface so insects can pollinate them. Thiérache, France. Canon EOS 5D Mark II, EF 16-35mm f/2.8L II USM, 1/200 sec at f/16, ISO 400.
