生活型

herb

形態特徵

• Perennial herb attaining 50–100 cm tall; stems and branches obtusely quadrangular, nearly glabrous.
• Leaves opposite, petiolate, oblong, 10–20 cm long, 4–10 cm wide, acuminate at both ends, sparsely pubescent on both surfaces.
• Inflorescence a terminal or axillary elongate spike, 5–20 cm long, usually loosely flowered; bracts membranaceous, ovate-deltoid, half as long as perianth; bracteoles subulate, shorter than perianth, basal auricles membranaceous, whitish, orbicular; pedicel horizontal in anthesis, deflexed in fruit; perianth denticulate.
• Utricles oblong, ca. 2.5 mm long.

分布

• 台灣 : on forest floors throughout the island.
• 世界 : Widely distributed in China, the Ryukyus?, Japan and Korea and temperate and subtropical regions of southeastern Asia.

引證標本

TAIPEI: Wulai, Chuang 2307; Tatunshan, Kao 6877. ILAN: Nanshan, Kuoh 3109; Taipingshan, Suzuki 3937. NANTOU: Shantsetun, Hsu 5116; Hoshe, Suzuki 159. CHIAYI: Shihtzulu, Kao 5628. PINGTUNG: Machia, Huang & Kao 7395. TAITUNG: Is. Lanyu, Huang & Kao 5253; Chihpen, Kao 6811. HUALIEN: Chilai, Suzuki 1926.

參考文獻

• LIU, TANG-SHUI and KAO, MUH-TSUEN, Flora of Taiwan, second edition 2: 391. 1996.  (Fl. Taiwan 2nd edit.)