生活型

herb

形態特徵

• Perennial herbs; stems slender, usually creeping or ascending, subterete, with retrorse hairs along both edges of the furrow, and many brown 4-celled scales.
• Leaves membranaceous to herbaceous, sparsely hirsute above, glabrous beneath, asymmetrically oblong or obovate, 0.9-1.8 cm long, basiscopic half semi-cordate, margins minutely ciliolate, serrate, teeth 2 or 3 on basiscopic half, 1 or 2 on acroscopic half, apex acute, obtuse or rounded; stipules 2, unequal, 1-nerved.
• Male inflorescences usually 1-6-flowered glomerules, sometimes 25- or more-flowered cymose glomerules; bracts 2, incompletely connate and forming an involucre, cymbiform, keeled; peduncles to 1.3 cm long. Female inflorescences usually 1-flowered; bracts 2, hirsute, connate at base, cymbiform. Male flowers slightly laterally compressed, obovoid; sepals 4, connate below middle, cymbiform; pedicels ca. 1.3 mm long. Female flowers with 6 or 7 rudimentary sepals; staminodes 6 or 7; ovary ovoid.
• Achenes glabrous, inconspicuously 4-ribbed below apex, ovoid.

分布

• 台灣 : at medium and high altitudes throughout the central mountains, mostly in moist ravines.

引證標本

ILAN: Taipingshan, Huang 4776. TAOYUAN: Rarashan, Shih 3109. HSINCHU: Kuanwu, Huang 6671. TAICHUNG: Hohuan Chanel, Shih 3249. NANTOU: Randaishan, Kawakami & Mori s. n. 1908; Kawakami, Hayata & Mori s. n. 1908; Yushan, Huang et al. 14271; Chang 18088. CHIAYI: Alishan, Ito s. n. 1914; Kuoh 7445. PINGTUNG: Tawushan, Yang 23454. TAITUNG: Chipentsushan, Shih 2670, 2679. HUALIEN: Hohuanshan, Shih 2893; Kiraikei-Asahi, Matuda 269.

引用文獻

• YANG, YUEN-PO, SHIH, BING-LING and LIU, HO-YIH, Flora of Taiwan, second edition 2: 217. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)