形態特徵

• Plants with creeping rhizomes. Stems leafy, slightly decumbent with deciduous soft dorsifixed pubescence.
• Median cauline leaves chartaceous, petiolate, ovate-oblong, 3–5×2.5–4 cm, slightly cordate to truncate and abruptly narrowed at base, falsely stipulate, petioles 1–2 cm long, pinnately cleft, terminal lobe largest, obtuse, lateral lobes of 2 pairs, elliptic to oblong, acute or obtuse, sometimes denticulate, with a narrow or rather broad sinus between lobes, short-pubescent above, with soft dorsifixed pubescence beneath.
• Heads about 2.5 cm across, in loose terminal corymbs, peduncles slender; involucres hemispheric, 5–6 mm long, bracts 4-seriate, outer small, oblong or ovate, inner shorter than median, elliptic or oblong. Ray florets: corolla yellow, 11–13 mm long, 2.5–3 mm wide. Disc florets: corolla yellow, 3 mm long, 5-fid.
• Achenes about 1.8 mm long, slightly curved, 5-grooved.

分布

• 台灣 : locally distributed in mid elevations.
• 世界 : Russia, India, Japan, Korea and China.

引證標本

NANTOU: Hsitou to Sunlinksea, Peng 5341. PINGTUNG: Wutai, Lin 372. TAITUNG: Chulu, Kao s. n. 1992.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 929. 1998.  (Fl. Taiwan 2nd edit.)