Blackfeet Indians used an infusion made from the bark of red alder to treat lymphatic disorders and tuberculosis.

They often form large thickets, and thrive in the open spaces under stands of red alder (Alnus rubra).

Vegetation in the forests includes California sycamore, the big leaf maple, and red alder.

It contains a forest of bigleaf maple, red alder, and black cottonwood.

The red alder is often mistaken for a birch because, like the birch, it has smooth, light gray or white bark.

The red alder is a major source of hardwood on the Pacific coast.

Common hardwoods include big leaf maple and red alder.

Large deciduous trees are black cottonwood, bigleaf maple, red alder, and Garry oak.

The land in this area is dominated by black cottonwood, red alder, and Douglas-fir.

Riparian zones support red alder and bigleaf maple forests.