4. Pseudotsuga macrocarpa (Vasey) Mayr, Wald. Nordamer. 278, plates 6, 8, 9. 1889.
大果黄杉 da guo huang shan
Abies macrocarpa Vasey, Gard. Monthly & Hort. 18: 21. 1876.
Trees to 25 m tall; trunk to 1.3 m d.b.h.; bark reddish brown, aging dark blackish gray, scaly, longitudinally fissured; branchlets pendulous, reddish brown or pale brown, aging gray-brown, slender, flexible, slightly pubescent; winter buds reddish brown, ovoid-conical or fusiform-conical, acute. Leaves 2.5-4 cm × ca. 2 mm, stomatal bands 2, abaxial, grayish white, base strongly twisted, apex acute. Seed cones greenish yellow when immature, ripening to dull brown, ovoid-cylindric, 9-13(-18) × 4-6 cm. Seed scales at middle of cones broadly cuneate-flabellate, thick, transversely convex, 2-2.5 × 3-3.5 cm, often resinous, puberulent when young, soon glabrous, faintly striate abaxially. Bracts exserted, not reflexed, lingulate, cusp longer than lateral lobes. Seeds brown, ovoid-conical, 1-1.2 cm × ca. 6 mm; wing pale brown, obovate, 1-1.4 cm.
Cultivated. Jiangxi (Lu Shan) [native to W United States]