In March and April Aspen and Poplar catkins start to appear. These trees have male and female catkins on different trees. Male catkins release pollen and female catkins produce the white fluffy seeds that carpet the floor in April and May. All the photos in this blog are taken from the Tree Guide UK app.
These are male catkins of the Aspen (Populus tremens) photographed in early March.
These are the female catkins of the Aspen, photographed in early March.
These are the male catkins of the Hybrid Black Poplar, photographed in March.
These are the male catkins of the Wild Black Poplar, photographed in mid April.