Where in Cambridge is this tree? Have you seen a lot of trees with their leaves still on this year? This natural phenomenon is called marcescence. The tree shown at right is a pin oak undergoing this process, which is the retention of leaves or other parts that would be expected to fall off. It is not uncommon for oaks to show marcescence, which may have evolutionary advantages.
Tech Networks of Boston supports the preservation of mature urban trees, which make neighborhoods more pleasant, filter our air and water, and moderate temperatures. It’s one of the ways trees are adapting to our warming climate.
We hope you’ll use this contest as a fun way to get to know your city’s trees!