生活型

shrub

形態特徵

• Deciduous shrubs; twigs grayish brown, terete, young twigs green, pilose, ridged below petioles.
• Leaves papery, obovate or elliptic, usually turning yellow when dry, 2.5–6 mm long, 1–4(–4.5) mm wide, apex obtuse, acute, abruptly acuminate or shortly caudate, with apiculate tip, base cuneate, slightly attenuate, margins glandular-serrate with teeth, teeth 1–3 mm apart, sparsely hairy or glabrescent on upper surface, glaucous on lower surface, pubescent, more densely so along midrib and nerves, midrib impressed on upper surface, prominent on lower surface; nerves 3–5 pairs; prominent on lower surface, reticulation coarse, petiole pilose, 2–3(–5) mm long.
• Inflorescence terminal, a cylindrical panicles, 2–8 cm long, lower branches subtended by foliage leaves and often concaulescent, axis pilose, bracts and bracteoles caducous, linear, 0.3–5 mm long, adaxially glabrous, abaxially densely pubescent, pedicels slender, 0–3 mm long. Calyx tube 1–1.5 mm highlong, pubescent limb ca. 1 mm long, deeply 5-lobed, lobes imbricate, ovate, apex obtuse or acute, hairy, ca. 1 mm long; corolla white, 4–5 mm long, deeply 5-lobed, the lobes elliptic; stamens 45–60, pentadelphous; disc 5-glandular, pilose; style glabrous or sparsely pilose near base, 3–4 mm long, base swollen; ovary 2-locular.
• Fruits black, ovoid, 6–7 mm long, 4–5 mm in diam., the persistent calyx lobes erect or forming a blunt beak, endocarp thin, seed 1, reniform (longitudinally curved) with similarly curved embryo.

分布

• 台灣 : 0–1,600 m altitude.
• 世界 : China and Vietnam

引證標本

TAIPEI: Moutzu, Chiang 328; Muchihshan, Wang 3037; Hopingdao, Keelung City, Chang 088; Chu Hou Shien, Shih s. n., Shihmen, Liu 695; Aoti, 0–100 m, Huang 2922; Sozan, Kudo et al. s. n.; Shinten, Yamamoto s. n., Tanaka 10978; Nankangshan, Jeng s. n.; Chihsingshan, 950 m, Shie 1064. TAOYUAN: Youngmi, Chang 14909; Chuwei, Liu 744; Yangmei, Peng 3121, 3130. HSINCHU: Tahu, 500 m, Shimada 4007; Kuanhsi Town, 350 m, Yang 7927. MIAOLI: Futien, near Yuen-li, Hsu 5268; Hsiaoping near Chunan and Toufen, Hsu 4343; Kuantaoshan, Ou et al. s. n. TAICHUNG: Houli Farm, Hsu 9019; Neipu near Yehmei, Hsu 9318; Takeng, Ou et al. s. n.; Fengyuan, 200–450 m, Leu 1037, 1734. NANTOU: Wuhsheh, 1200 m, Lu 15920; Shouting, 1500–1600 m, Peng 10853. TAINAN: Wushantou, Kuandien, Mori s. n. PINGTUNG: Taiping-shan, Yang 221, 1045; Nanjenshan, Huang et al. 9535; Nanjenkeng, 50–400 m, Ohashi et al. 13908. ILAN: Peikuan, Wang s. n.

引用文獻

• NAGAMASU, Hidetoshi, Flora of Taiwan, second edition 4: 105. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)