Alnus rubra
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Alnus rubra, the red alder, is a deciduous broadleaf tree native to western North America.
Yurok Loop Coastal Trail at Redwood NP
Broken branch showing red weathered bark
Typical leaf discoloration caused by ozone pollution
Red alder, western hemlock, and bigleaf maple forest
Abies grandis
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Abies grandis is a fir native to northwestern North America, occurring at altitudes of sea level to 1,700 metres. It is a major constituent of the Grand Fir/Douglas Fir Ecoregion of the Cascade Range.
Alnus rubra
…available to other species. Red alder is associated with coast Douglas-fir (Pseudotsuga menziesii subsp. menziesii), western hemlock (Tsuga heterophylla), grand fir (Abies grandis), western redcedar (Thuja plicata), and Sitka spruce (Picea sitchensis) forests. Along stream banks, it is commonly associated with…
Abies grandis Rogów 6
Cones
Old-growth copse in inland Oregon
Trunk cross-section