Flowers are drooping raceme catkins appear before or with leaves . " Populus ciliata " flowers are dioecious, individual flowers are either male or female.
2.
In drier areas such as the valley of the upper Ghaghara River it includes " Populus ciliata ", " Ulmus wallichiana ", and " Corylus colurna " as well and the riverbanks are dominated by Himalayan alder ( " Alnus nitida " ).