生活型

vine

形態特徵

• Scandent perennial woody vines. Stem dark red, sulcate, glabrous when mature.
• Leaves pinnately compound, subcoriaceous; petioles tendril-like, 4-7 cm long; stipules absent. Leaflets 5, sometimes 3, 2.2-7.4 cm long, 1.5-5.4 cm wide, deltoid or broadly elliptic; apex retuse; base cordate, cuneate or obtuse, rarely lobed; margin sparsely serrulate, rarely entire; glabrous on both surfaces; main veins 5, nerves flat or sunken on adaxial side; margin and nerves elevated on abaxial side; petiolulate.
• Inflorescence a dichasium or cyme, sometimes 1-flowered, axillary; Pedicels glabrous, trichotomously branched; bracts and bracteoles elliptic-lanceolate or lanceolate, subcoriaceous, glabrous on both sides. Flowers 35-75 mm in diam., pale pink, spreading. Sepals 6, rarely 5, 20-35 mm long, 5-13 mm wide, obovate-lanceolate; apex obtuse-mucronulate; base cuneate; glabrous or nearly so inside, densely velutinous outside. Stamens numerous, 8-15 mm long, glabrous, centripetal, inner ones shorter; anthers narrowly elliptic or linear, dehiscence lateral, longitudinal; connective short excurrent beyond pollen sacs, 0.18-0.2 mm long; filaments linear, flat, blue when fresh, brown when dry.
• Fruits 4.0-4.8 cm long; achenes 5-8 mm long, narrowly ovate or elliptic, compressed laterally, yellowish brown or reddish brown, with white velutinous hairs; style with white or pale yellow hairs bearded.

分布

• 台灣 : only on the Hengchun Peninsula; sunny places or forest margins below 800 m.

引證標本

PINGTUNG: Miharashi-toge, Kawakami & Mori 3137 (Holotype, TI!; isotype: TAIF!), Manchiou, Laofoshan, Yang 2631; Nanjenshan, Kawakami & Sasaki s. n. 1911 (Type of C. dolichosepala holotype, TI!; isotype, TAIF!) Chiou 159; Wanliteshan, Li 448; 9 Highway 496.5 Km, 350 m, Yang et al. 5951; Ako, Owatari s. n. 1898 (Type of C. owatarii; holotype, TI!; isotype, TAIF!). TAITUNG: Kweitien, Yang s. n. 1976.

引用文獻

• YANG, T. Y. ALECK and HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 2: 516. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)