salix purpurea

Salix purpurea (purple willow purpleosier willow or purple osier) is a species of willow native to most of Europe and western Asia north to the British Isles, Poland, and the Baltic States.

It is a deciduous shrub growing to 1–3 m (rarely to 5 m) tall, with purple-brown to yellow-brown shoots, turning pale grey on old stems. The leaves are 2–8 cm (rarely to 12 cm) long and 0.3–1 cm (rarely 2 cm) wide; they are dark green above, glaucous green below, and unusually for a willow, are often arranged ...