Oaks of the World

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  Quercus schottkyana
Author Rehd. & Wils. 1916 Pl. Wilson. 3: 237
Synonyms Cyclobalanopsis glaucoides Schottky 1912
glauca subsp schottkyana (Rehd. & Wils.) Menitsky 1976
glaucoides (Schottky) Koidz.
1916, nom. illeg., not Mart. & Gal. 1843
Local names dian qing gang ;
Range SW China (Guizhou, Sichuan, Yunnan) ; 1500-2500 m
Growth habit reaches 20 m tall; often shrub to 5-6 m ;
Leaves 5-12 x 2-5 cm; leathery, thick; elliptic to obovate-oblanceolate; apex caudate to acuminate; base slightly cuneate or almost round; margin apical 2/3 toothed; smooth, green, glabrous above; glaucous, tawny tomentose beneath along veins; midrib raised under; 8-12 vein pairs at an angle of 35° with midrib; tertiary veins conspicuous beneath; petiole 0.5-2 cm long;
Flowers May; pistillate inflorescences 2 cm long, erect, bearing 8-14 cups; male catkin rusty, 3.5-9 cm long;
Fruits acorn 1.2 cm in diameter, ovoid; pubescent at first, then glabrescent; enclosed 1/3 or 1/2 by cup; cup hairy outside and inside, 6-8 mm long, 8-12 mm wide, pale brown, with 6-8 concentric rings marginally subentire; scar 5-6 mm wide, convex; stylopodium persistent, short; maturing in 1 year;

Bark, twigs and

twigs greenish or brown, tomentose, then glabrescent; bud small, ovoid, obtuse, with tomentose scales; stipules linear, hairy;
Hardiness zone, habitat not quite hardy (zone 8); broad-leaved evergreen forests in mountains; prefers calcareous soils;
Miscellaneous -- A. Camus : tome 1, p. 294, n° 51 ;
-- Sub-genus Cerris, Section Cyclobalanopsis;
-- One should not confuse Q.glaucoides (Schottky) Koidz. 1916 with Q.glaucoides Mart. & Gal. 1843 which is a Mexican species;

Subspecies and