生活型

herb

形態特徵

• Plants stout, from stout rhizomes; stems ca. 1 m tall, glabrescent or glabrous, purple.
• Radical leaves chartaceous, cordate-orbicular, to 30 cm long and wide, margins strongly revolute while young, palmatipartite, segments palmately cleft to parted, lobes pinnately lobed or incised, lower surface densely pubescent while young; petiole winged; cauline leaves 3; petiole broadly sheathing, upper leaves smaller.
• Inflorescence corymbose; peduncle 2–9 cm long, densely crisp pubescent, bracts in 1 series, 9–12, broadly oblong, acuminate, not subtended by bract-like leaves. Ray florets in 1 series, ca. 10, pistillate, tube 8–12 mm long; corolla 4.8–6.5×0.8–1 mm; disc florets: corolla tubular, ca. 1.9–2.1 cm long, 5-lobed, tube 6.5–7 mm long.
• Achenes cylindric, ca. 9 mm long, glabrous. Pappus 6–7.5 mm long, rusty brown.
• Chromosome number, 2n = 60 (Peng & Hsu, 1978).

分布

• 台灣 : moist places and on grassy slopes in mountainous areas in the north, rare.
• 世界 : Japan, Korea and southern China.

引證標本

TAIPEI: Yangmingshan Natl. Park, Tsuitsuiku, Liao 3.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 1012. 1998.  (Fl. Taiwan 2nd edit.)