櫟屬落葉喬木，原產東亞，臺灣亦有分佈。主幹樹皮灰褐色，不規則縱向溝裂，木栓層厚而軟。葉革質，長橢圓狀卵形至闊披針形，芒尖鋸齒緣；下表面灰白色，被星狀短毛。雌雄同株異花，雄花的葇荑花序生長於剛長出來的枝條基部；雌花多生長於新枝條葉腋或無葉枝條上，有短梗。花期在4月間。殼斗杯狀，由線狀鱗片組成，線狀鱗片伸張或反捲；堅果近球形或卵形，先端有尖突。果實於11~12月間成熟。

A deciduous tree in the genus Quercus, native to East Asia and also distributed in Taiwan. Trunk bark gray-brown with irregular longitudinal fissures and soft and thick cork. Leaves leathery, oblong-ovate to broadly lanceolate, leaf margin with awn-like serration; grayish white with short stellate pubescent beneath. Monoecious. Male catkins grown on the base of the emerging branches; female catkins often axillary on new shoots or leafless branches, with short stalks. Flowering in April. Cupule cup-shaped and consist of long and recurved linear scales; acorns nearly spherical or ovoid with apical protuberance. Fruit mature from November to December.

喜強日照，以富含有機質排水良好的土壤為佳。種子繁殖。

The plant prefers strong direct sun and well-drained soils rich in organic matter. Reproduced by seeds.

可作庭園景觀樹。樹皮是製作軟木塞的材料。種子富含澱粉，可釀酒或作飼料。殼斗含鞣質，可作染料或提取拷膠。木材紋理平直，結構較粗，可供建築、車輛等使用。樹幹可作為栽培香菇的段木。

Suitable for the use as garden landscape tree. The bark can be used to make corks. The seeds are rich in starch and can be brewed to make wine, or used as feed. The cupules contain tannin and can be used as dye or to extract tannin. The wood is straight-grained and thick structured, an excellent material for construction and making vehicles. The trunk can be used as culture medium to grow mushrooms.