生活型

tree

形態特徵

• A shrub or small tree, 4–10 m high; branchlets robust, terete, blackish brown.
• Leaves compactly alternate to fasciculate, membranaceous, usually narrowly obovate, 8–18 cm long, 1.5–6 cm wide, slightly oblique with cuneate base and mucronate apex, the margins slightly revolute, green above, glaucous and papillate beneath, the lateral veins 7–13, impressed above; petioles triangular, 1–5 cm long.
• Staminate inflorescences racemiform, flat, 3–5 cm long, 2 mm wide; pedicels flat, pendent, 4–8 mm long, 0.2-0.5 mm wide, black; bracts larger than flowers, caudcous; calyx-lobes 0 or 1–2, linear, entire; stamens 6–9, the filaments oblong, 0.1-0.7 mm wide, triangular at apex. Pistillate inflorescences racemiform, flat, slightly flexuous, spreading upward, then reflexed down from the terminal portion, 4–6 cm long, 1 mm wide, black; pedicels flat, pendent, 7–13 mm long, 0.2 mm wide, black; bracts large, caducous; calyx absent; ovary ovoid; scale-like staminodes rarely present, usually numerous staminodial scars present; stigma shortly radiate or 2–4-lobed, sessile or sub¬sessile.
• Drupes elliptic-globose, 6–9 mm long, 5 mm across, smooth, glaucous, grayish-black; seeds elliptic-globose, smooth, 7 mm long, 4 mm across.

分布

• 台灣 : throughout the whole island.
• 世界 : China, Korea and Japan.

引證標本

TAIPEI: Wulai, Suzuki 8806*. ILAN: Tayuanshan, Kao 3204; Taipingshan, Chuang et al. 4817*. HSINCHU: Rokuzoshan, Fukuyama 3440. CHIAYI: Mt. Alishan, Sasaki 38033; Lulinshan, Jan & Kao s. n. July 13, 1957*. KAOHSIUNG: Ya¬mamoto & Mori 608. HUALIEN: Tailuko, Liu et al. 78.

引用文獻

• HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 508. 1993.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)