生活型

herb

形態特徵

• A coarsely hairy herb with branched, long-creeping stems up to 1 m long.
• Leaves opposite, pinnately compound, stipulate, 9.4–18 cm long; petioles 0.8–1.7 cm long; stipules 4; leaflets 10–16, obliquely oblong, 4–12 cm long, 2–5 mm wide, acute or obtuse at apex, oblique at base, entire; petiolules 0.5–1.5 mm long.
• Flowers yellow, axillary, solitary, actinomorphic; pedicels 1.3–1.5 cm long; sepals 3–5 mm long; petals 3–5 mm long; stamens 10 in two whorls; ovary 5; carpels with axile placentation; style short, excluded by sericeous hairs.
• Schizocarp bur-like, with 2 long and 2 short spines, 0.7–1 cm long, 1.5–1.8 cm across.

分布

• 台灣 : in sandy places of coastal regions, ranging from Penghu, Pingtung to Taichung counties.
• 世界 : Widely distributed in the tropical and subtropical regions of the world.

引證標本

CHANGHUA: Fangyan and Hsikang, Chow 100*. PENGHU: Makung, Pandanus park, Huang & Kao 6815.

參考文獻

• HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 412. 1993.  (Fl. Taiwan 2nd edit.)