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
Steamboats of the Lower Fraser River and Harrison Lake Puget Sound and the Fraser River. Ships that called in were the "Suprize", "Enterprise", and the "Wilson G. Hunt". At the onset of the Fraser Canyon Gold Rush and the accompanying declaration of the Colony of British Columbia, British colonial Governor James Douglas, was worried about an American monopoly on British trade and thus declared a law preventing steamboat traffic operating under the American flag from conducting trade in the colony. This did two things, it enabled a local shipbuilding industry and, in as a result in some cases, ship owners changed flags and registry to British shipping. Two dominant