Deciduous Canopy
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The Deciduous Canopy trees are generally more common on moist ground or are associated with Floodplains with a disturbance regime
The Four Lowland Deciduous Canopy Species[edit]
Generally listed here from moisture loving to more Drought-tolerant, these species also vary meaningfully in Wildfire tolerance and their tolerance of waterlogged soil, and their shade tolerance. Seed is generally wind-borne, and large areas of lowland have been cleared, so natural recovery involves conifer canopy marches over land leaping around 80m per generation.
- Fraxinus latifolia (Oregon ash) - thrives in seasonally flooded wet floodplain soils on the edges of wetlands.
- Populus trichocarpa (black cottonwood) - colonizes all bare moist ground with wind-borne seeds, grows fast, and larger than alder, resprouts from stumps and cuttings.
- Alnus rubra (red alder) - wind-bourne seed colonizes bare ground, shade intolerant, grows fast and dies young.
- Acer macrophylum (big-leaf maple) - resprouts after cutting making it abundant following Forestry harvest. Wind bourne seed and more widely adapted.
Other species tend to occur only in special environments, such as Quercus garryana which is keystone species in Prairie and Oak Woodland and is thus associated with landscape maintained by Cultural Burning and the striking Arbutus menziesii (Pacific madrone) which tends to specialize on dry shorline bluffs along Beaches or Embayments, intolerant of shade and resprouting after fire.
