Vasilis Teodoridis:
Pinaceae | Tsuga
2. Tsuga dumosa (D. Don) Eichler in Engler & Prantl; Nat. Pflanzenfam. 2(1): 80. 1887.
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Pinus dumosa D. Don in Lambert; Descr. Pinus 2: 55. 1824; Abies yunnanensis Franchet; Pinus brunoniana Wallich; Tsuga brunoniana (Wallich) Carriere; T. calcarea Downie; T. chinensis (Franchet) E. Pritzel subsp. wardii (Downie) E. Murray; T. dumosa var. yunnanensis (Franchet) Silba; T. dura Downie; T. intermedia Handel-Mazzetti; T. leptophylla Handel-Mazzetti; T. wardii Downie; T. yunnanensis (Franchet) E. Pritzel; T. yunnanensis subsp. dura (Downie) E. Murray.
Trees to 40 m tall; trunk to 2.7 m d.b.h.; bark brownish gray or gray-brown; thick; longitudinally fissured; crown pyramidal; branchlets initially yellowish or reddish brown; turning light brown or dark gray in 2nd or 3rd year; ridged and grooved; brown lanate. Leaves pectinately arranged; linear; rarely narrowly linear-lanceolate; 1-2.4(-3.5) cm x 1.5-3 mm; grooved adaxially; abaxial stomatal bands white; distal margin entire or serrulate; apex obtuse; entire or occasionally emarginate. Seed cones light green; maturing light brown; ovoid or narrowly so; 1.5-3 x 1-2 cm. Seed scales obovate-orbicular; 1-1.4 x 0.7-1.2 cm; base only slightly convex; distal part slightly recurved; very thin; smooth. Bracts cuneate-rhombic; margin denticulate; apex 2-lobed. Seeds obliquely ovoid or narrowly ovoid; 0.8-1.2 cm including wing. Pollination Apr-May; seed maturity Oct-Nov.
Mountain slopes; river basins; 2300-3500 m. Sichuan; S Xizang; N and W Yunnan [Bhutan; N India; N Myanmar; Nepal; Sikkim; N Vietnam]