生活型

herb

形態特徵

• Perennial suffrutescent erect herbs with long stoloniferous rhizomes. Stems terete, 50–90 cm tall, villose, branching upward.
• Radical leaves withering at anthesis. Cauline leaves distinctly 3-nerved, upper surface scabrous, lower surface densely villose, glandular punctate, more densely so on veins; middle leaves 4–10 cm long, 1.5–4 cm broad, ovate-oblong to oblong-lanceolate, apex acuminate or attenuate acuminate, base sharply narrowed, attenuate-cuneate, subsessile or short petiolate, margins serrate with 4–8 pairs of shallow teeth; upper leaves smaller.
• Heads few to numerous in tight or loose corymbs, 1–1.5 cm across, peduncle 3–15 mm long. Involucre campanulate to hemispheric, 4.5–5.5 mm tall, 5–6 mm across, bracts in 3 or 4 series, green or purplish, herbaceous, somewhat scarious, 1-nerved adaxially, narrowly lanceolate, apex obtuse to acute, entire, tomentose outside, margins usually ciliolate, inner bracts gradually longer 4–5 mm long, 0.5–1 mm wide, outer bracts 1.7–3 mm long, 0.8–1.2 mm wide. Ray florets 12–15 in one row, ligules white, 4–8 mm long, 1–2 mm wide. Disc florets yellow, 4.5 mm long. Pappus dirty white or reddish, 4–5 mm long at maturity.
• Achenes lanceolate-obovate, compressed, pale brown, 2–3 mm long, 0.7–1.2 mm wide, sericeous.
• Chromosome number, 2n = 18, 27, 28 (Soejima & Peng, Bot. Bull. Acad. Sin. 39: 299–302. 1998).

物候

Fl. Aug-Nov.

分布

• 台灣 : mid and high elevations in the northern mountains, 2,100–2,600m.
• 世界 : Southern and southeastern China.

引證標本

ILAN: Szuyuan, Peng 5644; Nanhutashan, Fukuyama 4035. TAICHUNG: Kukuan, Peng 12149; Wuling, Peng 12075. NANTOU: Hinokiyama, Nakahara s. n. 1907 (TYPE!). CHIAYI: Alishan, Feng et Kao 4908.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 857. 1998.  (Fl. Taiwan 2nd edit.)