Salix bakko is
a deciduous tree of 3-10m in height and 5-30cm in diameter that
inhabits light, dry areas in hilly to mountainous districts.
Alternate hypotaxis, leaves are shaped like an oblong, 5-17cm long,
3-7cm wide, with conspicuous dent wrinkles along veins on the upper
surfaces, white curly hairs tingeing powdery white on the lower
surfaces, and low wavy serrations on the margins. Dioecious: flower
buds (winter buds) are significant and red-brown. Flowers thickly
set themselves in oblong inflorescences that emerge before the
leaves develop. The flower lacks petals. Bloom time: March-May.