The 'White alder'. A very attractive medium-sized to large tree with a spreading nature. Often producing interesting diamond-shaped, downy but shiny leaves. Its foliage produces a wonderful warm, spicy scent.
The 'Sitka alder'. Makes a small tree or large shrub with attractively thin, broad, double-toothed leaves. The conspicuous male catkins are up to 23cm long and hang in great profusion. Whilst its bark is striking metallic-grey.