生活型

herb

形態特徵

• Herb; stem prostrate to ascending, green or reddish, sericeous on the upper side; stipules free at the upper side of stem, linear-lanceolate, 0.3–1.2 mm long, sericeous abaxially, those at the lower side sometimes fused.
• Leaves green to reddish, obovate-oblong to oblong-lanceolate, 3–7.8 mm long, 2–4.7 mm wide, acute to rounded at apex, obliquely truncate, rounded or subcordate at base, serrulate at margin, sparsely sericeous below; petioles 0.4-0.8 mm long, sericeous abaxially.
• Cyathia 1 to few on short congested lateral branches and appearing clustered; involucres turbinate-campanulate, 0.5-0.7 mm long, sericeous outside, pilose inside; stalks 0.2-0.5 mm long; glands 4, pale green or red, rounded to transversely elliptic or oblong, slightly concave, 0.1-0.2 mm long; appendages white to reddish, depressed obovate, undulate, up to 0.5 mm long, 0.2 mm wide; bracteoles acicular. Male flowers 3–4, anthers red. Female flowers with sericeous pedicel and ovary, style and stigma to 0.6 mm long.
• Capsules ca. 1 mm long, 1 mm diam., not completely exserted at maturity and often rupturing side of involucres, sericeous; seeds reddish, tetragonal, oblong-ovoid, 0.6-0.7 mm long, 0.4-0.5 mm diam., transversely rugose.

分布

• 台灣 : Commonly found in grasslands and wilderness, cultivated fields and seashores throughout the islands.
• 世界 : Pantropical.

引證標本

TAIPEI: Kungkuan, Tanaka & Shimada 11115; Wanli, Kao 8830. ILAN: Ilan, Kudo & Sasaki 15446. HSINCHU: Hsinchu City, Sakada 25. MIAOLI: Tonghsiao, Lin & Chou 266. TAICHUNG: Taichung, THAI Campus, Lin 151. NANTOU: Yuechih, Lienhuachih, Lin 213. CHANGHUA: Tienwei, Lin 299. YUNLIN: Shuichangliu to Peikang river, Owatari s. n. 1898. CHIAYI: Chiayi, Lin et al. 278. TAINAN: Tainan City, Hsu 9601. PINGTUNG: Pingtung City, Matuda 162; Hsiaoliuchiu, Hosokawa 1936. PENGHU: Penghu Islands, Huang & Kao 6904. HUALIEN: Hualien City, Lin 38. TAITUNG: Sanhsientai, Yamamoto 2077; Is. Lanyu, Hungtou, Lin 802; Is. Lutao, Kudo & Mori 185.

引用文獻

• HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 448-451. .  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)