1、 Differences in trunk:

The height of fir trunk is about 40 meters. The color of trunk epidermis is dark, gray or dark gray. Irregular thin lobes are distributed on the trunk, and the color of endothelium is light red

The height of spruce trunk is high, up to 45m, and the color of trunk epidermis is lighter, which is light grayish brown or light brownish gray

2、 Different blades:

Fir needles are wider in shape, 1.5 to 3cm long and 2 to 2.5mm wide. The leaves grow obliquely above the branches. The upper part of the leaves is light green, and there will be two light white lines at the bottom

Spruce needles are quadrangular in shape, slightly shorter and narrower than the former, 1 to 2 cm long and 1 to 1.5 mm wide

3、 Different fruits:

The fruit of the former hangs upright on the branches and matures in October

The fruit of the latter drooped upward on the branches, and the fruit matured earlier and began to mature from September