Oaks of the World

General data Classifications List of species Local names Back to
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  Quercus yunnanensis
Author Franch. 1899
Synonyms Cyclobalanopsis yunnanensis (Franch.) H.LÚv. 1916
aliena var. urticifolia (Franch.) Skan
dentata var. oxyloba Franch. 1899
dentata subsp yunnanensis (Franch.) Menitsky 1973
dentata var. yunnanensis (Franch.) A.Camus 1934
dentatoides Liou 1936
griffithii var. urticifolia Franch. 1899
malacotricha A.Camus 1933
yui Liou 1936
oxyloba (Franch.) Liou 1936
Local names yun nan bo luo li;
Range China (Yunnan, Sichuan, Guangdong, Guangxi, Guishou, Hubei ) ; 1000 - 2800 m
Growth habit 15-20 m tall;
Leaves 8-10(-25) x 3-4.5(-18) cm; oboval; apex pointed, shortly acuminate; base cuneate; margin with 8-10 pairs of teeth; hairless above; velutinous beneath; 8-13 vein pairs; tertiary vein inconspicuous beneath; petiole 4-8 mm long, densely yellow brown tomentose;
Flowers March-April; pistillate inflorescences 2-4 cm long;
Fruits acorn 1.5-2.5 cm long, 1 cm in diameter; ovoid; apex mucronate; 1 to 3 together; enclosed 1/3 to 2/3 by cup; cup campanulate, 1.5 cm in diameter, with lanceolate, leathery, brown grey, 3-8 cm long scales; maturing in 1 year;

Bark, twigs and
buds

bark slightly corky; twig sulcate, with lenticels, densely tomentose with stellate hairs;
Hardiness zone, habitat hardy;
Miscellaneous -- A. Camus : n░ 144 (named Q.malacotricha) ;
-- closely related to
Q.dentata of which it differs in having petiole and cup-scales shorter; must be considered as conspecific;
Subspecies and
varieties
 
Pictures

drawing 1
drawing 2