生活型

herb

形態特徵

• Likely perennial herb; stem prostrate, spreading, glabrous; stipules deltoid, 0.3-0.5 mm long, laciniate at apex, free above, fused below, glabrous.
• Leaves elliptic to obovate, 2.5–6 mm long, 1.5–3.5 mm wide, truncate to emarginate at apex, obliquely rounded at base, serrulate at tip to entire at margin, glabrous on both surfaces; petioles reddish, 0.2–1 mm long, glabrous.
• Cyathia solitary at nodes; involucres campanulate, 0.8–1 mm long, glabrous outside, pilose inside; stalks 0.5-0.7 mm long; glands 4, green to red, elliptic or oblong, 0.2-0.3 mm long; appendages narrowly elliptic, entire to distinctly undulate at margin; bracteoles linear, sublaciniate. Male flowers 3–10, anthers red. Female flowers occasionally with 1 or 2 minute triangular, perianth segments; pedicel and ovary glabrous; style and stigma 0.2-0.3 mm long.
• Capsules 1.3–1.7 mm long, 1.2–1.7 mm diam., exserted, nutant, glabrous, the pedicels to 2.4 mm long; seeds grayish or brownish, tetragonal, oblong-ovoid, 0.8–1.2 mm long, 0.6-0.9 mm diam., smooth or slightly rugulose.

分布

• 台灣 : Endemic, usually occurs in sandy crevices of cement embankments and coral reefs, or sometimes in sandy wilderness along coast of Taiwan and Penghu.

引證標本

PENGHU: Penghu Island, Kudo & Mori 3090.

參考文獻

• HUANG, TSENG-CHIENG. Flora of Taiwan, second edition 3: 445-448. (Fl. Taiwan 2nd edit.)