生活型

herb

形態特徵

• Perennial herbs, 50–130 cm tall, strongly aromatic, sparsely puberulous or glabrescent.
• Leaves subsessile or sessile, sparsely puberulous or glabrescent; basal and lowermost leaves obovate or broadly spatulate, 4–6(–7)×2–2.5(–3) cm, obliquely pinnately parted or pinnatifid from apex to center, apex sparsely serrate, middle lobes spatulate, cuneate or narrowly spatulate, 2.5–3.5(–4.5)×0.5–1(–2) cm; uppermost leaves tripinnatifid or undivided; bracts elliptic, lanceolate or linear-lanceolate.
• Inflorescence paniculate. Heads numerous, ovoid or subglobose, 1.5–2.5 mm in diameter. Outer florets 3–8. Central florets 5–10.
• Achenes minutely obovoid.
• Used as an antifebrile and for detoxifying drugs.

物候

Fl. and fr. Jul-Oct.

分布

• 台灣 : sunny hills at low elevations in the mountains or by seashore.
• 世界 : Japan, Korea, Thailand, India, Afghanistan. and northeastern and southern China.

引證標本

MIAOLI: Tunglo to Wumeikeng, Peng 11555; Shihtan, Peng 5429. TAITUNG: Lanyu Is., Peng 5255; Lutao Is., Peng 7634.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 839. 1998.  (Fl. Taiwan 2nd edit.)