Lithocarpus elaeagnifolius (Seemen) Chun

Trees 10-15 m tall. Branchlets of current year covered with early glabrescent, tawny crisp hairs; branches of last-year growth blackish brown, with gray to pale yellowish brown, lamellate wax layer, densely and minutely lenticellate. Petiole 5-8(-10 or more) mm, base thickened; leaf blade narrowly oblong to sometimes narrowly oblanceolate, 7-15 × 1-2.5 cm, rigidly papery, with tawny crisp hairs on both surfaces when young, soon glabrescent, adaxially with waxy scalelike trichomes and grayish brown when dry, base cuneate, margin entire or ± undulate near apex, apex narrowly acuminate; secondary veins 12-16 on each side of midvein, obscure near margin; tertiary veins abaxially very slender, evident or not visible. Male inflorescences terminal panicles, 3-7 cm; rachis tomentose with tawny, short hairs. Female and androgynous inflorescences to 18 cm. Female inflorescence with rachis 2-3 mm thick; cupules in clusters of ca. 3. Cupule depressed globose to subglobose, 1-1.2 × 1.4-1.7 cm, enclosing 3/4-4/5 of nut, wall ca. 1 mm thick and crustaceous; bracts triangular, squamose, appressed, tawny scurfy. Nut ± depressed globose, 1-1.2 × 1.2-1.4 cm, glabrous, apex ± pointed, wall ca. 0.5 mm thick; scar 1-1.1 cm in diam., concave. Fl. Jul-Sep, fr. Jul-Sep of following year.

C to S Hainan [Vietnam]

Mixed mesophytic forests in valleys; below 300 m.

Quercus elaeagnifolia Seemen, Bot. Jahrb. Syst. 23 (Beibl. 57): 51. 1897; Pasania elaeagnifolia (Seemen) Schottky; Synaedrys elaeagnifolia (Seemen) Koidzumi.

Lithocarpus elaeagnifolius là một loài thực vật có hoa trong họ Cử. Loài này được (Seemen) Chun mô tả khoa học đầu tiên năm 1928.

胡颓子叶柯（学名：Lithocarpus elaeagnifolius）为壳斗科柯属下的一个种。