生活型

shrub

形態特徵

• Erect perennial deciduous shrubs, 50-120 cm tall. Stem sulcate, white velutinous, glabrous at maturity.
• Leaves ternate, opposite, chartaceous; petioles not tendril-like, 5.6-10.6 cm long, densely velutinous. Leaflets 3, broadly ovate, ovate or elliptic, 4.5-12.0 cm long, 3.8-12.8 cm wide; apex acuminate; base truncate or obtuse, lateral segments oblique; 3 to 5-lobed; margin serrate or sometimes coarsely serrate; glabrous or nearly so on adaxial surface, pubescent on abaxial surface; main veins 5, nerves flat or sunken on adaxial side, elevated on abaxial side; terminal segment petiolulate, lateral ones subsessile or sessile on.
• Inflorescence umbel-like racemose, terminal and axillary, usually clustered; pedicels white velutinous; bracts chartaceous, subulate or leaflike, lobed, margin serrate, sparsely velutinous inside, densely villose outside. Flowers ca. 1 cm in diam., polygamous. Sepals 4, pale pink or pale rose, turning brown when dry, tubular, recurved at the tip, 1.4-2.0 cm long, 3-4.5 mm wide, oblong-lanceolate to linear, wider above middle, 5 mm wide; apex cuspidate; base cuneate; glabrous on adaxial side, sericeous-tomentose on abaxial side. Stamens numerous, 4-10 mm long, glabrous on adaxial side, sparsely pubescent on abaxial side; anthers linear, dehiscence lateral, longitudinal, glabrous outside; connective shortly excurrent beyond pollen sacs, 0.06-0.1 mm long; filaments linear, dilated near anther.
• Carpels numerous, white sericeous. Staminate flowers with normal stamens and sterile carpels. Fruits 2.4-4.9 cm long; achenes 3.5-4.5 mm long, ovate or elliptic, convex on both sides, deep brown, yellow velutinous hairs; style with yellow hairs.

分布

• 台灣 : Open land in the central mountains and Alishan between 1,000 and 2,500 m.

引證標本

NANTOU: Hsitou, Sanlinhsi, Huang 13084. CHIAYI: Alishan, Moore 16481. PINGTUNG: Mt. Mutoo, Hannoki et Adel, Hosokawa 5405 (Holotype of C. heracleifolia var. taiwanica, TAI!; isotypes, TAI!); Ali to Hsiaokueihu, Liao et al. 559. HUALIEN: Tayulin, Kuoh et al. 6915.

參考文獻

• YANG, T. Y. ALECK and HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 2: 536. 1996.  (Fl. Taiwan 2nd edit.)