Eastern white pine is native to the eastern United States and is the largest conifer in Minnesota.
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Tree Education
Benefits of Trees
- Improve air quality by providing oxygen and eliminating pollutants
- Water conservation
- Minimize water runoff
- Minimize soil erosion
- Provide shade
- Help reduce money spent on heating and cooling
- Add value to homes (up to 15%)
- Privacy
- Provide habitat for wildlife
- Provide wood and food products
Tree Biology
Branch Bark Ridge

Area of a tree’s crotch where the growth of two limbs push into a ridge.
Branch Collar

The branch collar is formed by the annual production of layers of tissue between the branch and trunk
Included Bark

Bark that becomes enclosed inside the crotch as two branches grow and develop.
Compartmentalization

Compartmentalization is the natural process by which a tree walls off the spread of decay.
Co-Dominant Leaders

Two tightly growing limbs (generally with no branch collar and having included bark) competing to be the leader.