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How to Identify Tree-of-Heaven

The Ailanthus altissima tree is commonly known as a Tree-of-Heaven. It can quickly grow to be a big problem. This is a guide to identify it.

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Californians in Oregon: How Do Sequoias and Redwoods Do in Portland?

Giant sequoia and coast redwood trees are often found in California. They can also be found growing in Portland's urban forest.

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Tree Physiology Primer – All About Roots!

A brief review of tree parts and how a tree functions.

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Trees and Sidewalks - Healthy Roots, Healthy Tree

Information on tree roots and sidewalks.

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12 Broadleaf Evergreen Street Trees You Should Plant

Learn about a selection of trees that keep their leaves all year, and do well in Portland.

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