Poplar is tall and straight, symbolizing integrity and justice;

At the same time, poplars are always so tall and strong, symbolizing the indomitable fighting spirit.

Populus alba, a deciduous tree, has a height of 15 ~ 30m, a broad crown, a white trunk, a white to grayish white bark and a rough base. Branchlets are covered with white fluff. The sprouting branches and long branches are wide, oval, palmately 3-5-lobed, 5 5- 10/0cm long and 3-8cm wide, tapering at the top, wedge-shaped at the base, round or nearly heart-shaped, with hairs on both sides when young, and then only on the back; Short branches and leaves are oval or oval, 4~8 cm long and 2~5 cm wide. Strong viability, roadside, next to the ridge, where there is loess, there is its existence. It can be used as firewood, furniture, purlin and farm tools. * * * There are 4 subspecies.