生活型

herb

形態特徵

• Herb; stem rooting at nodes, reddish, glabrous; stipules pale to reddish, deltoid, 0.3-0.5 mm long, incised at apex, glabrous.
• Leaves rounded-ovate to ovate-elliptic, 2–5 mm long, 1–4 mm wide, retuse to rounded at apex, obliquely rounded to cordate at base, entire at margin, glabrous on both surfaces; petioles reddish, 0.3–1.5 mm long, glabrous.
• Cyathia solitary at nodes; involucres turbinate-campanulate, 0.3-0.6 mm long, glabrous outside, pilose inside under glands; stalks 0.5–1.5 mm long; glands 4, red, rounded to transversely narrowly elliptic or oblong, 0.2-0.3 mm long; appendages white to reddish, narrowly elliptic, distinctly undulate at margin; bracteoles acicular, sublaciniate. Male flowers 2–4, anthers red. Female flowers with glabrous pedicel and ovary; style and stigma 0.2-0.3 mm long.
• Capsules 1.1–1.3 mm long, 1.4–1.6 mm diam., exserted, nutant, glabrous, the pedicels to 2 mm long; seeds grayish or brownish, tetragonal, oblong-ovoid, 0.8–1 mm long, 0.5-0.7 mm diam., smooth or slightly rugulose.

分布

• 台灣 : In yards, crevices of tilepaved roads and cement ground, and sandy seashores throughout the islands.
• 世界 : Southern China, the Philippines and the Ryukyus.

引證標本

TAIPEI: Tanshui, Makino s. n. 1896 (Type of Euphorbia makinoi, TI!). HSINCHU: Hsinchu City, Sakada 25. MIAOLI: Lungkang, Chuang 2581. TAICHUNG: Taichung City, THAI Campus, Lin 150; Kukuan, Ou & Kao 8858. CHANGHUA: Tienwei, Lin 197. TAINAN: Kuantien, Morimoto s. n. 1943. PENGHU: Penghu, Huang & Kao 6836. PINGTUNG: Nanwan, Lin 397. HUALIEN: Wenshan to Yuehwangting, Lin 357.

參考文獻

• HUANG, TSENG-CHIENG. Flora of Taiwan, second edition 3: 442. (Fl. Taiwan 2nd edit.)