生活型

herb

形態特徵

• Herbs to 1.5 m tall; stem somewhat woody at base, sparsely stinging-hairy.
• Leaves ovate to lanceolate, 10-17 cm long, 3-9.5 cm wide, with stinging hairs above and on veins beneath, base rounded to cuneate, rarely cordate, margins dentate, penninerved, lateral veins 4-6 pairs; stipules connate, fugacious, 0.5-1 cm long.
• Male inflorescences usually on lower part of plant, to 10 cm long; male flowers subsessile; perianth lobes 5, rarely 4, ca.1mm long and broad, with sparsely to dense stinging hairs; stamens 5, rarely 4. Female inflorescences usually on upper part of plant, to 17 cm long; perianth segments 4, 2 lateral segments ca. 1 mm long, dorsal segment ca. 0.4 mm long, ventral segment ca. 0.3 mm long; ovary asymmetrically ovoid, stigma densely puberulent on inner side.
• Achenes smooth, semicircular.

分布

• 台灣 : at medium altitude around Chingshuishan and in the vicinity of Taipei.
• 世界 : Japan, Korea, mainland China, Vietnam, Sikkim, India, Sri Lanka (Ceylon), Sumatra and Java.

引證標本

TAIPEI: Tryanari anbu, Sasaki s. n. 1925. HUALIEN: Chingshuishan, Shih 3046, Lu 23825.

參考文獻

• YANG, YUEN-PO, SHIH, BING-LING and LIU, HO-YIH. 1996. Flora of Taiwan, second edition 2: 224. (Fl. Taiwan 2nd edit.)