Pseudotsuga wilsoniana (syn. P. sinensis var. wilsoniana) Pinaceae
Taiwan Douglas-fir soo-do-TSOO-ga
- Conifer, evergreen tree, to about 65-80 ft (20-25 m) tall, bark thick, corky, deeply fissured into scaly ridges. Young shoots red-brown then more gray, buds oval-conical, apex pointed. Leaves flat, linear, slightly curved, to about 5 cm long and 0.15 cm wide, apex emarginate (notch), midrib grooved the entire length above, keeled with 2 stomatal bands beneath. Cones pendant, about 6 cm long and 3 cm wide, scale nearly 3 cm wide and bract scales with reflexed tips, with long, awl-shaped middle lobes and 2 triangular, short acuminate side lobes. Seeds winged, about 1.5-2 mm long.
- Hardy to USDA Zone 7 or lower Native to China and Taiwan. Some consider it a variety of P. sinensis [P. s. var. wilsoniana] and distinguish it from the type variety by its gray-green, rather that white, stomatal bands and that it is native to Taiwan, whereas the "type" in found on the mainland.
- Oregon State Univ.: a small collection in McDonald Forest on a trail off Road 540.