Species

Quercus ciliaris Huang & Chang

LC

Synonyms (4)

gracilis Rehd. et Wils. liboensis pseudoglauca shennongii
Data from Oaks of the World

Geographic Range

500-2600 m in China (Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, W Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Zhejiang).

Growth Habit

reaches 15 m tall;

Leaves

4.5- x 1.5-3 cm, oblong-oval to oval-lanceolate; shiny green adaxially; whitish below, with simple prostrate hairs; base cuneate to almos rounded; apex acuminate to caudate; margin with small sharp serrations on apical 2/3; 7-12 vein pairs inconspicuous; tertiary veins obscure beneath; petiole 1-1.5 cm long;

Flowers

pistillate inflorescences 1-1.5 cm long, with tomentos bracts and rachis;

Fruits

acorn ellipsoid, 1.5-2 cm long, 1 cm wide, hairy at apex; 2 to 3 together; enclosed 1/3 or 1/2 by cup; cup 6-8 mm long, 10-13 mm wide, with greyish brown tomentum inside and outside, with 6-9 concentric rings denticulate (the 2 rings near base dentate); scar 5 mm in diameter, slightly convex; stylopodium persistent, short; ripening first year;

Common Names

xi ye qing gang

Hardiness & Habitat

hardy; mixed forests in mountains;

Additional Information

– Sub-genus Cerris, section Cyclobalanopsis; – Closely related to Q.glauca , actually conspecific with it; – In Flora of China this species is described under the name Cyclobalanopsis gracilis ; – In 2007, Govaerts accepts that Q. liboensis is a true species (Guizhou), with the synonym Cyclobalanopsis pseudoglauca Li & Wang 1985 ; threatened (IUCN Red List Category : EN)

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