Salix alba (White Willow)
Native: Europe including Britain, northern Asia, northern Africa
Location: Grows wild on riversides.
Leaves are light green at first, becoming dark green with white silky hairs above the thick white down beneath, giving the tree a pale greyish white appearance.
Catkins open in late April and May, males yellow about 3.7-5.5cm long, females green about the same length ripening to form fruiting catkins.
Fruiting catkins which split to release white tufted seeds in June.