Pseudotsuga menziesii var. glauca
Rocky Mountain Douglas-fir
soo-do-TSOO-ga men-ZEE-see-i GLAW-ka
Native to (or naturalized in) Oregon:
- Conifer, evergreen tree, to 130 ft (40 m), smaller and slower growing than the Pacific coast form. Buds oval-conical, apex pointed. Needles flattened, vary widely in color, usually dark green to grey-green, sometimes glaucous (bluish-green, as shown here), radially arranged, 25 mm long. Cones, mostly 4-7 cm (smaller than coast type), bracts oppressed, spreading, or reflexed.
- Sun. Grows in colder and drier environments than the coastal form.
- Hardy to USDA Zone 4 (Rocky Mountain type) (Pacific Coast type and hardy to Zone 6) Native range primarily the Rocky Mountains and west to eastern Washington, Oregon, Nevada, and Arizona.
- menziesii: named after Archibald Menzies (1745-1842), Scottish physician and naturalist who collected in the Pacific Northwest.
- Dallas, Oregon: Delbert Hunter Arboretum and Botanic Garden.