2. Pseudotsuga menziesii (Mirbel) Franco, Bol. Soc. Brot. ser. 2, 24: 74. 1950.
Douglas-fir, Oregon-pine, sapin de Douglas
Abies menziesii Mirbel, Mém. Mus. Hist. Nat. 13: 63, 70. 1825; A. mucronata Rafinesque; A. taxifolia Poiret 1805, not Desfontaines 1804; Pinus taxifolia Lambert 1803, not Salisbury 1796; Pseudotsuga douglasii (Lindley) Carrière; P. mucronata (Rafinesque) Sudworth; P. taxifolia (Lambert) Britton
Trees to 90(--100)m; trunk to 4.4m diam.; crown narrow to broadly conic, flattened in age. Twigs slender, pubescent, becoming glabrous with age. Leaves 15--30(--40) × 1--1.5mm, yellow-green to dark or bluish green, apex obtuse to acute. Pollen cones yellow-red. Seed cones 4--10 × 3--3.5cm. Seeds 5--6mm, wing longer than seed body.
Varieties 2 (2 in the flora): North America, Mexico.
Pseudotsuga menziesii is a most important timber tree, valued in both the Old and New worlds. The two intergrading varieties are sympatric in southern British Columbia and northeastern Washington.
Douglas-fir ( Pseudotsuga menziesii ) is the state tree of Oregon.
