Douglas fir menziesii". The coast Douglas-fir variety is the dominant tree west of the Cascade Mountains in the Pacific Northwest, occurring in nearly all forest types, competes well on most parent materials, aspects, and slopes. Adapted to a moist, mild climate, it grows larger and faster than Rocky Mountain Douglas-fir. Associated trees include western hemlock, Sitka spruce, sugar pine, western white pine, ponderosa pine, grand fir, coast redwood, western redcedar, California incense-cedar, Lawson's cypress, tanoak, bigleaf maple and several others. Pure stands are also common, particularly north of the Umpqua River in Oregon. Poriol is a flavanone, a type of flavonoid, produced
Douglas Ranges of 1857-1860, which used the Harrison River and Harrison Lake as part of a route to the Interior, the Douglas Road. They are not named directly for the colonial Governor, Sir James Douglas, but for the port and road that bore his name. Douglas Ranges The Douglas Ranges are a subrange of the Pacific Ranges of the Coast Mountains of the Canadian province of British Columbia, about east of downtown Vancouver, north of the Fraser River and between the valleys of Stave and Harrison Lakes. They are approximately in area. Their highest peak is Mount Robertson , at the northwest