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COVID-19 Risk Level for Multnomah County: High Risk

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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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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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A brief review of tree parts and how a tree functions.
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Information on tree roots and sidewalks.
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Learn about a selection of trees that keep their leaves all year, and do well in Portland.
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City of Portland offices are closed on Monday February 15, 2021 in observance of Presidents' Day.
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Updated
In case of snow or ice, leave garbage, recycling and compost carts at the curb. They will be emptied as soon as it is safe to do so.
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Typically published twice a month, Urban Forestry's Tree Bark Newsletter now has both January 2021 editions ready to read.