alnus

Forest economics: Why are fallen alder leaves still green?

Most of the leaves on the ground are brown, yellow, or other fall colors. Why are many alder leaves still green?

Which one is native to the Pacific Northwest?

Three of these might be found on your dinner table. The other is a native tree of the Pacific Northwest. Which are which?

After Snowpocalypse, how are the trees doing?

Here in the Pacific NW, we had an uncommonly cold and snowy February. Did this affect the new buds on trees and shrubs?