Belongs to: trees

Alder Alnus glutinosa

Best time to see: all year

Key facts

A spreading tree with rounded leaves and yellowish catkins, which open before the leaves in late March

Egg-shaped fruit in clusters of up to 4, releaseing floating seeds in October that are distributed by water

Grows by fresh water and in flushed wet areas, i.e. where oxygen-rich water is moving through the ground

© Jim Champion

© Owen Keen

© Ruth Hartnup