生活型

shrub

形態特徵

• An evergreen scandent shrub. Stems glabrous, scattered with sparse prickles; branchlets sometimes with thinly glandular hairs.
• Leaves mostly 3-foliolate, rarely 5; leaflets elliptic or ovate, the terminal one 5–7 cm long, 2.5–3 cm wide, the lateral ones smaller, acute or obtuse at apex, acute at base, glabrous on both surfaces, serrate; rachis glabrous and sparsely prickled; stipules linear, up to 1.2 cm long, glandular-hairy and serrate along the margin.
• Flowers solitary, 5–7 cm long; calyx-tubes and pedicels densely prickled; calyx-lobes persistent, prickled outside; petals white, emarginate.
• Fruits pyriform, up to 3.5 cm long, l–1.5 cm wide, densely prickled.

分布

• 台灣 : very common in thickets at low altitudes.
• 世界 : China.

引證標本

TAIPEI: Wulai, Matuda 908; Yangmingshan, Sasaki s. n. 1936. NANTOU: Chitou, Kuo s. n. 1956*.

參考文獻

• OHASHI, HIROYOSHI, Flora of Taiwan, second edition 3: 115. 1993.  (Fl. Taiwan 2nd edit.)