毛脉高山栎 mao mai gao shan li

Craibiodendron forrestii W. W. Smith; Quercus longispica (Handel-Mazzetti) A. Camus; Q. pseudosemecarpifolia A. Camus; Q. semecarpifolia Smith var. glabra Franchet; Q. semecarpifolia var. longispica Handel-Mazzetti.

Trees to 20 m tall, evergreen. Young branchlets pale brown tomentose, glabrescent. Petiole 2-5(-7) mm, pubescent or glabrous; leaf blade narrowly elliptic, elliptic, oblong, or obovate, 3-8(-13) × 2-5(-6) cm, reddish brown to orangish brown stellate, abaxially glabrescent but usually retaining some stellate hairs, adaxially glabrescent but pubescent along the midvein, base rounded to shallowly cordate, margin entire or with spiniform teeth, apex obtuse; midvein flexuous; secondary veins 4-8(-12) on each side of midvein; tertiary veins abaxially obscure. Female inflorescences 3.5-16 cm. Infructescences 6-16 cm; rachis brown tomentose. Cupule shallowly cupular, 4-7 mm × (0.6-)1-1.5 cm, enclosing less than 1/2 of nut; bracts linear-lanceolate to triangular-ovate, ca. 1.5 mm, densely yellowish gray pubescent, apex obtuse, brown, and glabrous. Nut ovoid, 1-1.2 × 0.7-1.2 cm, glabrous or apex slightly pubescent. Fl. May-Jun, fr. Oct-Nov of following year.

Montane forests to subalpine scrub; 1500-4000 m. Guizhou, Sichuan, Xizang, Yunnan [Thailand]