European spruce (scientific name: Picea abies (L.) H. Karst.) It is a tree of the spruce genus in the pine family. The plant can reach a height of 60 meters and a breast height diameter of 4-6 meters; Young trees have thin bark, while old trees have thick bark that splits into small thin pieces; Branches often droop, young branches are light reddish brown or orange red, hairless or sparsely hairy, persistent bud scales at the base are significantly rolled back, and winter buds are conical in shape; Leaves are square shaped with four edges, straight or curved, pointed at the tip, oblique in cross-section, and have pink white stomatal lines on all four sides; The cone is cylindrical in shape, with seeds about 4 millimeters long and wings about 16 millimeters long.

Black spruce (Picea Mariana Britton, Sterns&Poggenb.) is a plant of the pine family and the spruce genus. The crown of the tree ranges from conical to pointed. The bark is gray brown in color. Branches are short and drooping, often stratified; The small branches do not droop and are yellow brown in color. Bud gray brown, with a sharp tip. The leaves are hard, light blue-green, with white frost, and all surfaces have pores. The tips are mostly blunt and pointed. Scales fan-shaped, widest near the tip, rigid, with irregular teeth on the edge of the tip. Round fruit spindle shaped, dull, deep purple, mature purple brown.

European spruce (scientific name: Picea abies (L.) H. Karst.) It is a tree of the spruce genus in the pine family. The plant can reach a height of 60 meters and a breast height diameter of 4-6 meters; Young trees have thin bark, while old trees have thick bark that splits into small thin pieces; Branches often droop, young branches are light reddish brown or orange red, hairless or sparsely hairy, persistent bud scales at the base are significantly rolled back, and winter buds are conical in shape; Leaves are square shaped with four edges, straight or curved, pointed at the tip, oblique in cross-section, and have pink white stomatal lines on all four sides; The cone is cylindrical in shape, with seeds about 4 millimeters long and wings about 16 millimeters long.

Silver spruce (scientific name: Picea engelmannii Parry ex Engelm.) is a plant of the pine family and the spruce genus. Evergreen trees. Up to 60 meters in height and 200 centimeters in diameter at breast height. The tree crown has a narrow conical shape. The bark is gray to reddish brown. The small branches are thick and robust. The buds are orange brown, and the leaves are 1.6-3 centimeters long. The cone is purple or dark purple, light brown when ripe, and 3-7 centimeters long; The scales are diamond shaped to oval shaped, with the widest part above the middle. Native to the Rocky Mountains from British Columbia to northern Mexico. Growing on various mountainous soils, including calcareous and non calcareous soils.

Spruce is a perennial green tree that inhabits mountainous areas and river valleys at elevations of 2000 meters (6600 feet) to 3800 meters (12500 feet). The Hardiness Zones are classified as level 6 to 7, requiring sufficient sunlight, a moist environment, good drainage, and neutral to acidic soil. It can grow in poor or strong acidic soil, but cannot adapt to air pollution environments and grows slowly. In natural environments, it often accumulates into vast pure forests, resembling white clouds from afar, hence the name Spruce.