Oaks of the World

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  Quercus rehderiana
Author Hand.-Mazz. 1925 Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 62: 129
Synonyms longispica (Hand.-Mazz.) A.Camus 1936 (Camus = n° 94) Chênes Atlas 1: 37
pseudosemecarpifolia A.Camus 1936 Chênes Atlas 1: 31
semecarpifolia var. glabra Franchet 1899
semecarpifolia subsp glabra (Franch.) Hand.-Mazz. 1929
semecarpifolia var. longispica Handel-Mazzetti 1929 Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 66: 39
dilatata var. yunnanensis Schottky 1912
Local names mao mai gao shan li ;
Range China (Yunnan, Sichuan, Guizhou), Tibet, Thailand ; 1500 - 4000 m ; introduced in UK in 1981 by Roy Lancaster;
Growth habit may reach 20 m tall; at high elevation is only a small tortuous shrub;
Leaves 4-10 x 2-4 cm; persist for 3 years; oval; rounded at both ends; margin entire, remotely wavy, with some spiny teeth; glabrescent on both sides (hairs beneath, if any, are simple and fascicled); 4-12 vein pairs, not sunken underneath; petiole 2-7 mm long;
Flowers May-June; large pistillate inflorescences 3,5-12 cm long; male catkins reaching 18 cm long;
Fruits acorn small, 1 cm long, 0.8 cm in diameter, 1 cm long; mucronate; on a long rachis to 12 cm; enclosed 1/2 by cup; cup scaly, 0.8-1.2 cm in diameter; maturing in 2 years;

Bark, twigs and
buds

young twigs at first pale brown tomentose, becoming hairless;
Hardiness zone, habitat hardy; prefers calcareous soils;
Miscellaneous

-- A. Camus : tome 1, p. 399, n° 95 (under the name Q. pseudosemicarpifolia, with Q. rehderiana as a synonym);
-- Sub-genus Cerris, Section Ilex;

-- Q. pseudosemicarpifolia could differ from Q. rehderiana in having secondary veins impressed above, the presence of some sparse hairs beneath. For A. Camus, Q. rehderiana is a synonym of Q. pseudosemicarpifolia (tome 1, p. 399, n° 95); Sichuan, Yunnan, Xizang.
A. Camus named this taxon Q. pseudosemecarpifolia instead of its original name Q. rehderiana because she thought that the name Q. rehderiana was too similar to Q. × rehderi Trel.

-- For Menitsky, Q.rehderiana has several synonyms : Q.semecarpifolia subsp glabra, Q.aquifolioides, Q.guajavifolia, Q.longispica and Q.pseudosemecarpifolia.

-- See the Key for Asian similar Quercus;

Subspecies and
varieties 		-
Pictures

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