生活型

herb

形態特徵

• Plant with creeping rhizomes. Stems ascending, few-branched, densely silver-sericeous, becoming glabrate.
• Cauline leaves thick, petiolate, broadly ovate to broadly obovate, 2.5–4×1.5–2.5 cm, base cuneate into a petiole 7–17 mm long, palmately pinnatifid or trifid or trilobed, segments acute to obtuse, dentate, green and appressed pubescent above, becoming glabrate, densely silver-sericeous beneath.
• Heads 2.5–3 cm across, solitary, long-pedunculate; involucres sub-hemispheric, 15×7–8 mm, bracts imbricate, brown-margined, outer ovate to oblong, middle and inner broadly ovate. Ray florets: corolla white, 1.5 cm×4 mm. Disc florets: corolla greenish-yellowish, 3.5 mm long, 5-dentate.
• Achenes 2 mm long, slightly curved, 5-grooved.

分布

• 台灣 : on limestone cliffs of eastern Taiwan, 400–2,400 m, rare.

引證標本

HUALIEN: Taroko Natl. Park, Lushui, Peng 17009; Yenhai Forest Trail, Peng 13319; Chingshuishan, Huang et al. 12908.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 807. 1998.  (Fl. Taiwan 2nd edit.)