Spruce, also known as white pine, big spruce, big fruit spruce, pine family of spruce tree plants. The bark is grayish-brown, broken into slightly thick irregular scaly pieces shedding; Branchlets sparsely or densely covered with short hair, annual branchlets light brown, brown or reddish brown, base persistent bud scales recurve, winter buds conical, resinous; Leaf quadrangular strip, apex slightly pointed or sharp pointed, transverse plane four-rhomboid, four sides with powdery white stomatal lines; Cone cylindrical oblong, narrow upper end, green before ripening, light brown or brown at ripening; Seeds obovate; The flowering period is April to May, and the cones mature in September to October.