生活型

herb

形態特徵

• Herbs biennial or perennial, 50–90 cm tall, branched, gray arachnoid pubescent, or glabrescent.
• Petiole of basal to middle cauline leaves 3–13 cm long, basal leaves rosulate, blade 11–18×8–16 cm, 2- or 3-pinnatisect, segments 3(–4) pairs; lowermost and middle cauline leaves elliptic-ovate, 3–5×3–5 cm, pinnatisect, segments 2 or 3 pairs, lobes 8–12×1.5–2 mm; uppermost cauline leaves 3–5-sect; leafy bracts narrowly linear-lanceolate, 10–30×1.5–2 mm.
• Inflorescences paniculate. Heads obconical, 4–5 mm in diam., nodding. Outer florets 10–15. Central florets 20–30.
• Achenes obovoid-ellipsoid.

物候

Fl. and fr. Jul-Oct.

分布

• 台灣 : seasides.
• 世界 : Japan and Korea

引證標本

TAIPEI: Shihmen, Sasaki 25695; Keelung, Hopingtao Sasaki 25694. TAINAN: Simada 25696.

引用文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 837. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)