生活型

tree-shrub

形態特徵

• Large shrubs or small trees. Branches light to dark brown, branchlets puberulous or glabrous.
• Leaf blades oblong-lanceolate, 6-13 cm long, 1.4-2.5 (3.3) cm wide, apex acuminate, base obtuse, often oblique, entire or sometimes sparsely serrulate, lateral veins 11-15 (17) pairs, veinlets branch-like; immature leaf blades densely fulvo-pubescent; mature leaf blades glabrous or nearly so above, densely fulvo-pubescent on lower surface; stipules minute, ovate-rhomboid, ca. 0.5 mm long.
• Aments coetaneous, subsessile, peduncle with deciduous leafy bract at base; male aments slender, 3.5-5 cm long, pilose; stamens 2, filaments 2.5-4.5 mm long, pilose at base, anthers elliptic, 0.8-1 mm long, 0.6-0.9 mm wide, pollen sacs 2, unequal at base; nectary 1, square; bracts oblong, 1-2 mm long, 0.7-1.2 mm wide, pilose or only margin pilose; pistillate ament 2-5 cm long, to 8 cm in fruit, loosely flowered; pistils glabrous, long ovate, lanceolate, 1.8-2.8 mm long, 5 mm long in fruit, stipe as long as ovary, styles shorter than stigma lobes, stigma double bifid, stipe 1-2 mm long, pilose, as long as bract; nectary and bract as in staminate flowers; ovules 6-10 per ovary.
• Capsules linear, 5-6 mm long, spliting along suture from tip.Seeds green, 1-2 mm long, comal.

分布

• 台灣 : In open areas in mountains, 1,600-3,200 m throughout the island, common.

引證標本

ILAN: Nanhutashan, Yang 2112; Szuyuanyakou, Wang s. n. 1988; Taipingshan-Tzuifenhu, Yang 3017. TAICHUNG: Lishan, Kuo s. n. 1978; Wuling-Huanshan, Kuoh 6999. NANTOU: Kuankao, Yang 2276; Kuankao to Chungyang gold mine, Yang 2984; Chungyang gold mine to Paiyang gold mine, Yang 3007; Patongkuan to Yushan, Yang 2277; Tsuifeng to Meifeng, Wang s. n. 1988; Tungpu, Liu & Ou 1009. CHIAYI: Alishan, Yamamoto & Nakumura 4079; Alishan-Chushan, Hashioka s. n. 1932; Alishan-Iwaiyama, Yamamoto & Mori s. n. 1932; Alishan-Shihshan, Yamada 69; Alishan-Wangshueshan, Sasaki s. n. 1913 (Type of S. fulvopubescens, TAIF!); Alishan-Tashan, Keng 1129; Tataka, Masamune 3784; lokulinshan-Yushan, Jan & Kao s. n. 1957; Yushan, Kawakami & Mori s. n. 1906. KAOHSIUNG: Tienchih-Yako Shelter, Yang 2888*. HUALIEN: Taiyuling, Wang s. n. 1987; Hohuanshan, Ying 573; Tailokutashan, Sasaki s. n. 1933.

引用文獻

• YANG, KUOH-CHENG and HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 2: 30. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)