Trees 7-15(-25) m tall. Branches glabrous; branchlets dark brown to brownish black when dry. Petiole 1-1.5 cm; leaf blade elliptic, ovate, or lanceolate, (5.5-)7-12.5(-14.5) × (1.5-)2.5-5(-6) cm, thickly papery, abaxially covered with a very tight layer of scalelike trichomes and reddish brown to yellowish brown when young but grayish brown with age, base rounded to sometimes acute, margin serrate to rarely subentire, apex acuminate to abruptly narrowly caudate; midvein adaxially slightly impressed to rarely nearly flat; secondary veins 9-13 on each side of midvein. Rachis of inflorescences glabrous or glabrescent. Infructescence rachis base 2-3.5 mm thick. Cupule globose, 1.5-2 cm in diam., rarely splitting, wall ca. 1 mm thick; bracts spinelike, thick, 1-3 mm, sometimes no more than tubercles, 3-or 4-angular in cross section, pale grayish brown pubescent, sometimes base loosely connected to discontinuous rings. Nut 1 per cupule, subglobose to conical, 1-1.3 cm in diam., glabrous, apex acute; scar basal, 8-9 mm in diam. Fl. Apr-May, fr. Sep-Oct of following year.
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A tree. It keeps its leaves throughout the year. It grows 7-15 m tall. The leaves are narrowly oval or sword shaped. They are shiny green underneath. They are 7-13 cm long by 3-5 cm wide. It tapers towards the tip. There are teeth along the edge. The seeds are a flattened round shape and 10-13 mm across. They are in a capsule that is smooth. It is 15-20 mm across.