Salix_integra
Salix integra
Species of willow
Salix integra is a species of willow native to north-eastern China, Japan, Korea and the far south-eastern Russia (Primorsky Krai).[1][2]
It is a deciduous shrub growing to 2–6 m tall with greyish-green bark and reddish to yellowish shoots. The leaves are 2–10 cm long and 1–2 cm wide; they are pale green both above and below, and unusually for a willow, are often arranged in opposite pairs or whorls of three, rather than alternate. The flowers are produced in small catkins 1–2.5 cm long in early spring; they are brownish to reddish in colour. It is dioecious, with male and female catkins on separate plants.[1][3]
It is closely related to the European and western Asian Salix purpurea, and has been treated as a variety of it by some authors, as S. purpurea var. multinervis (Franchet & Savatier) Matsumura, or as a subspecies S. purpurea subsp. amplexicaulis (Chaubard) C.K.Schneid.[1][3]