Bamboo is a cultural feature of south-east Asia. No country in this region is without indigenous bamboo flora. This natural resource plays a major role in the livelihood of rural people and in rural industry. In West Bengal 75 species were reported which include 49 species growing only in the Botanical Gardens.

Salix tetrasperma is commonly called as Indian Willow. In terai zone of West Bengal Salix tetrasperma is seen growing in middle of the pond of many households. During winters when the ponds are dry, the light textured soil does not retain water for long time; the tree bears lush green foliage. On contrary during rainy season when the ponds are filled with water, it sheds its leaves. This may be attributed to soil aeration.