生活型

herb

形態特徵

• Perennial herb; stem prostrate to ascending, seldom erect, glabrous; stipules usually fused at upper and lower side of stem, sometimes free at upper side, ovate-deltoid to ovate, 0.4–1.2 mm long, incised at margin, sericeous adaxially.
• Leaves subcoriaceous, elliptic to ovate-oblong, 12–30 mm long, 7–14 mm wide, obtuse to rounded at apex, obliquely subcordate at base, entire at margin, glabrous on both surfaces; petioles 1.5–2.5 mm long, glabrous.
• Cyathia in cymes with leaf-like bracts; involucres turbinate, 1–1.4 mm long, glabrous outside, velutinous inside; stalks 0.5–5.6 mm long; glands 4, yellow, transversely elliptic or oblong, 0.3-0.7 mm long; appendages white, narrowly elliptic and obscure; bracteoles linear, laciniate-lacerate at margin. Male flowers 10–25; anthers yellow. Female flowers with glabrous pedicel and ovary; style and stigma 0.4-0.6 mm long.
• Capsules ca. 3 mm long, 2.3 mm diam., exserted, nutant, glabrous, the pedicels to 6 mm long; seeds brownish, tetragonal, ovoid to rounded-ovoid, smooth or slightly rugulose, 1–1.5 mm long, 0.8–1.3 mm diam.

分布

• 台灣 : Local populations occur in coral reefs and sandy coastal areas in the southern and eastern parts of the island.
• 世界 : India, southern China, Malaysia, Java, Australia, the Philippines, the Ryukyus, Japan and Polynesia.

引證標本

ILAN: Suao, Kawakami s. n. 1914. KAOHSIUNG: Hayata 115. PENGHU: Chiyuyu, Hsu s. n. 1985. PINGTUNG: Hsiaoliuchiu, Tailiao, Hosokawa 1948; Oluanpi, Morilani 1926. TAITUNG: Sanhsientai, Lin 646; Is. Lanyu, Lin 787; Is. Latao, Chaw & Lin 906.

參考文獻

• HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 433. .  (Fl. Taiwan 2nd edit.)