生活型

tree

形態特徵

• Medium-sized evergreen tree to 12 m high, trunks 0.7 cm* across;
• Leaves elliptical to ovate, 3.1–6.3 cm long, 1.2–2.2 cm broad, acute at apex, obtuse or cordate at base, margins echinate-serrulate, midrib elevated beneath, together with petioles tomentose at base, lateral veins 5–12 pairs; petioles short-stalked, 0.1–0.3 cm long.
• Perianth of staminate flowers 4–5-lobed, 2 mm long, 1.5 cm broad, glabrous except along margins; stamens 3–5. Perianth of pistillate flowers 4–5-lobed, 2 mm long, 4 mm broad, tomentose outside; styles 3, stigmas 3, enlarged.
• Cupules shallowly cup-shaped, 0.5–0.7 cm long, 1–1.3 cm across, tomentose-silky, scales triangular, imbricate; nuts ellipsoid, 1.4–1.8 cm long, 0.8–1 cm across.

物候

Flowering from June; fruits maturing from November to December.

分布

• 台灣 : From 300 to 1,300 m in the eastern part of the island (Hoping, Taroko Gorge, Taitung Coastal Range and Wulu).

引證標本

TAITUNG: Tienlong bridge, Haituang, Chen & Wang 1. HUALIEN: Tienhsiang, Mizushimas' & Liao 10899, 10901.

引用文獻

• LIAO, JIH-CHING, Flora of Taiwan, second edition 2: 119. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)