生活型

herb

形態特徵

• Annual procumbent or ascending herbs, 30–80 cm tall; stems much branched, retrorsely pilose.
• Leaves subsessile, ovate-lanceolate, lyrate-pinnatifid, 1.8–7 cm long, 1–3 cm wide, apex acuminate, base attenuate, both surfaces glabrous to velutinous at veins, lower surface minutely glandular; petioles winged, usually auricled at base; ocreae tubular, 0.5–1 cm long, apex weakly oblique, glabrous to pubescence, upper margins shortly ciliate or eciliate.
• Inflorescences many-flowered fascicles in head-like corymb, terminal or axially, densely flowered; peduncles glandular pubescent, 1–2 cm long; bracts lanceolate, glabrous, apex acute to acuminate, upper margins eciliate. Flowers white to pink; pedicels included; perianth segments 5, elliptic, 4–5 mm long, apex obtuse; stamens 8; styles 3-cleft, included; nectaries present.
• Achenes dark brown, trigonous, smooth, shining, 2 mm long.

分布

• 台灣 : in wet shady fields, pastures, at high altitudes from 2,100 to 3,200 m.
• 世界 : N India, the Himalayas, Myanmar, Thailand, SW & C China, Taiwan, the Philippines, Malaysia and Indonesia.

引證標本

NANTOU: Tayuling, Hsu & Hsu 3820. ILAN: Chiliting, Hsu 5927. CHIAYI: Paiyun hostel, Hsu 6306. HUALIEN: Hohuanshan, Hsieh 997.

引用文獻

• LIU, HO-YIH, Flora of Taiwan, second edition 2: 310. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)