生活型

herb

形態特徵

• A perennial herb up to 60 cm high, with long-creeping rhizomes; stems simple, erect, glabrous.
• Leaves membranaceous, opposite, lanceolate to ovate-lanceolate, 5–8 cm long, 1.5–2 cm wide, the apex acuminate, the base obtuse to acute, the margins serrulate, pubescent above and on nerves beneath; petioles 1–3 cm long; stipules lanceolate, 1.5 mm long.
• Spikes axillary, solitary, 6–10 cm long, long-pedunculate, the staminate in lower axils, the pistillate in upper axils. Male flowers subsessile; stamens about 10. Female flowers few, short-pedicellate; ovary 2-locular, reniform, glabrous.
• Capsules 2-valved, rugulose on the surface; seeds subglobose, about 2 mm across.

分布

• 台灣 : Throughout the island, more common in the central mountainous regions.
• 世界 : Korea, Japan and the Ryukyus.

引證標本

TAIPEI: Kuanyinshan, Chuang 2166. ILAN: Taipingshan, Suzuki 3859. NANTOU: Tienchih, Kao 5880. CHIAYI: Tungpu, Kao 4563. KAOHSIUNG: Shihshan, Huang 6517. PINGTUNG: Tawushan, Sasaki 2141. TAITUNG: Ramaramashan, Cheng & Kao 6068*. HUALIEN: Chingshuishan, Shimizu & Kao 11887.

引用文獻

• HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 492. .  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)