生活型

vine

形態特徵

• Stems long creeping, rooting at nodes, coarsely hirsute; flowering branches ascending, leafy, densely strigose.
• Cauline leaves thick coriaceous, oblong, sometimes ovate or lanceolate, acute, base cuneate, loosely dentate, 3-nerved, coarsely strigose on both surfaces, petiole 2–8 mm long.
• Heads 5–22 mm long, 16–22 mm across, usually solitary, terminal; peduncle 1–7 cm long; involucre hemispheric, 10–12×5–6 mm, bracts in 1 series, ovate to ovate-oblong, 2–3.5 mm wide, acute to obtuse, coarsely strigose. Ray corollas yellow, 8–11×4 mm. Disc corollas tubular, 5–6 mm long, 5-dentate.
• Achenes 3.5–4×2 mm, apically strigillose, 3- or 4-angled. Pappus bristles 1 or 2, or obsolete.
• Chromosome number, 2n = 30 (Peng & Hsu, 1978).

分布

• 台灣 : on littoral sand dunes and sandy seashores.
• 世界 : Southeast Asia, Korea, Japan and China.

引證標本

TAIPEI: Pali, Watzuwei, Leu 1014; Yenliao, Wang 977. ILAN: Chuangwei, Peng 7027; Tungao, Fenniaolin, Peng 13769. TAOYUAN: Tayuan, Houtsokang, Peng 7724. HSINCHU: Lienhuassu, Peng 5159. MIAOLI: Houlung, Wang 1656. PENGHU: Wangan Isl., Leu 2071; Tungpanyu Isl., Chen 731. PINGTUNG: Fengtsueisha, Peng 7205. HUALIEN: Shoufeng, Takeng, Peng 7368.

引用文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 1094. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)