生活型

herb

形態特徵

• Stems ca. 70 cm long, erect, more or less flexuous, crisp puberulous apically, simple or branching.
• Median cauline leaves rigid, opposite, ovate-oblong, 7–8×3–4 cm, apex long-acuminate, base rounded or truncate, subsessile, margins serrate, upper surface green, lower surface pale, glandular punctate, densely puberulous on veins on both surfaces, subtrinerved.
• Inflorescence of more or less compact corymbs; involucre cylindric, 6 mm long, 5-flowered, bracts ca. 12, 2-seriate, rounded or obtuse, outer ones much shorter.
• Achenes cylindric, 3 mm long, hirsute, Pappus scanty, white, 4 mm long.
• Chromosome number, 2n = 20 (Peng & Hsu, 1978). <li>This species is similar to <i>Eupatorium clematideum</i> and <i>E. ambile</i>, but differs in its 5-flowered heads and subsessile leaves that are glandular-punctate on the lower surface.</li>

分布

• 台灣 : low to mid elevations.

引證標本

TAIPEI: Yangmingshan, Peng 11540; Wulai, Peng 11540. ILAN: Taipingshan, Suzuki 245. TAICHUNG: Central Cross-Island Highway, Chung 568. NANTOU: Kuankao, Peng 8059. HUALIEN: Chingshuishan, Shimizu & Kao 11989.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 963. 1998.  (Fl. Taiwan 2nd edit.)