Castanopsis eyrei (Champ. ex Benth.) Hutch.

Trees 8-20 m tall; branches glabrous. Petiole 0.7-1.5 cm or rarely longer; leaf blade lanceolate, ovate, ovate-elliptic, or oblong, 5-13 × 1.5-5.5 cm, leathery, abaxially reddish brown to dark reddish brown when dry and with brownish to silver-gray, membranous scalelike trichomes, base slightly decurrent on petiole and inaequilateral or sometimes symmetric, margin entire or with few shallow teeth from middle to apex, apex long acuminate; midvein at least from base to middle adaxially slightly raised; secondary veins 7-11 on each side of midvein, very slender, evident. Infructescence rachis 2-5 mm thick, glabrous or glabrescent. Cupule broadly ovoid to subglobose, 2-3 cm in diam., splitting into 2-4 segments, outside and bracts grayish to yellowish gray puberulent, apically acute to obtuse, wall ca. 1 mm thick; bracts spinelike, usually entirely covering outside of cupule, more densely toward apex but if cupule subglobose then basally glabrous and spines sparser, 4-10 mm but apical ones shorter. Nut 1 per cupule, broadly conical, 0.8-1.4 cm in diam., glabrous; scar basal, 8-10 mm in diam. Fl. Apr-Jun, fr. Sep-Nov of following year.

Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Qinghai, Sichuan, Taiwan, Xizang, Zhejiang

* Mixed and broad-leaved evergreen forests; 300-1700 m.

Quercus eyrei Champion ex Bentham, Hooker’s J. Bot. Kew Gard. Misc. 6: 114. 1854; Castanopsis asymetrica H. Léveillé; C. brachyacantha Hayata; C. caudata Franchet; C. chingii A. Camus; C. eyrei var. brachyacantha (Hayata) C. F. Shen; C. incana A. Camus; C. neocavaleriei A. Camus; Lithocarpus eyrei (Champion ex Bentham) Rehder; Pasania eyrei (Champion ex Bentham) Oersted; Q. castanopsis H. Léveillé; Q. cavaleriei H. Léveillé & Vaniot; Q. cepifera H. Léveillé; Q. trinervis H. Léveillé; Shiia brachyacantha (Hayata) Kudo & Masamune; Synaedrys brachyacantha (Hayata) Koidzumi.

Castanopsis eyrei is a species of flowering plant in the family Fagaceae, native to southern China, and Taiwan. An evergreen tree typically 8 to 20 m (25 to 65 ft) tall, it is usually found in late successional forests from 300 to 1,700 m (950 to 5,600 ft) above sea level, where it is often the dominant species. It is used as a street tree in a number of southern Chinese cities.

Castanopsis eyrei là một loài thực vật có hoa trong họ Fagaceae. Loài này được (Champ. ex Benth.) Hutch. mô tả khoa học đầu tiên năm 1904.

反刺苦櫧（学名：Castanopsis eyrei），又名甜槠，为殼斗科苦櫧屬下的一个种。