Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Living Organisms (hierarchy name)
4. living organisms (entities)
5. Eukaryota (domain)
6. Plantae (kingdom)
7. Coniferophyta (division)
8. Pinopsida (class)
9. Pinales (order)
10. Pinaceae (family)

Narrower term/s

• Picea mariana (species)
• Picea pungens (species)
• Picea abies (species)
• Picea rubens (species)
• Picea sitchensis (species)
• Picea glauca (species)
• Picea engelmannii (species)
• Picea smithiana (species)

Anotations

Scope note:

Genus of around 35 species of coniferous evergreen trees in the family Pinaceae, order Pinales, found in northern temperate and boreal. Mature trees may be 20-60 m (66-200 feet) tall. They are distinguished from similar genera by whorled branches, conical form, with needle-like leaves attached singly to the branches in a spiral fashion, and rough rather than smooth branches. As needles are shed throughout the life of the tree, the branches retain a rough appearance from the pulvinus, to which the needles had been attached. Comprises around 40 species of evergreen ornamental and timber trees native to the temperate and cold regions of the Northern Hemisphere. They are pyramidal trees with whorled branches and thin, scaly bark.