The height of fir trunk is about 40 meters, the color of its epidermis is is dark, gray or dark gray, irregular thin lobes are distributed on the trunk, and the color of its endothelium is light red.
The height of spruce trunk is on the high side, and the skin color of trunk can be up to 45m, which is light gray brown or light brown gray.
Fir needles are wider in shape, 1.5 to 3 cm long and 2 to 2.5 mm wide. The leaves grow obliquely above the branches. The upper part of the leaves is light green, and there are two light white lines at the bottom.
The shape of spruce needles is quadrangular. Compared with the former, the leaves are slightly shorter and narrower, 1 to 2 cm long and 1 to 1.5 mm wide.
The former fruits hang upright on the branches, and the ripening period is in October.
The latter fruit droops on the branch, the fruit matures early, and begins to mature from September.
