Alnus rubra
Both the valley floor and the mountain sides are characterized as mixed forest, predominantly conifers, but with a peppering of a few deciduous trees like the Pacific dogwood "(Cornus nuttallii"), locally extinct Pacific crabapple ("Malus fusca") or "Pryus fusca", bitter cherry ("Prunus emarginata"), pin cherry ("Prunus pensylvanica"), choke cherry ("Prunus virginiana"), Red Alder ("Alnus rubra"), Sitka Alder ("Alnus sinuata"), Paper Birch ("Betula papyrifera"), big leaf maple ("Acer macrophyllum"), Douglas maple ("Acer glabrum")