生活型

herb

形態特徵

• Rhizome 1-5 cm thick with numberous branching scars and scale leaves, sending out stolons which develop new plantlets.
• Fertile branches many, petiole-like, highly variable in length. Petiole short, to 2 cm long. Leaves blade ovate-orbicular, rounded, deeply cordate at base with narrow sinuses, 8-20 cm across, abaxially densely glandular.
• Flowers bisexual, distylic, clustered at nodes, 5-merolls. Pedicels 5-12 cm long. Calyx deeply 5v lobed to near base; lobes 5-7 mm long, ovate-lanceolate, apex obtuse, margins hyaline. Corolla white with a yellow throat, 2.5 cm across; lobes (4-) 5-7 (-8), oblong-lanceolate, up to 15 mm long, surface and margins densely fimbriate, with multicellular, cottonlike outgrowths. Stamens as many as corolla lobes, dimorphic, inserted in the throat of the corolla, each with a small tufts of glandular hairs. Pistil bottle-shaped; style stout, 2-lobed; hypogynous disc glands as many as stamens, orbicular, cililolate at tips with papillose hairs.
• Capsule ellipsoid to obovoid, 4.5-6 mm across. Seeds brownish, ellipsoid, ca. 1 mm long, smooth and shining.
• Chromosome number 2n = 2x = 18.

分布

• 世界 : Widely distributed in warm temperate to tropical regions in E. and S. Asia, Australia, America, and Africa.

引證標本

KEELUNG: S. Sasaki s. n. Sep 1908 (TAIF). TAIPEI: S. Sasaki s. n. Aug 1924 (TAl); Hsichih, G. Masamune 2574 (TAl); Nelhu, G. Masamune 2843 (TAl); Kcibi, T. Tanaka & Shimada 13604 (TAl); Shcnkeng, Mucha, Y. Shimada s. 11. May 1907 (TAIF). NANTOU: T. Kawakami s. n. Nov 1906 (TAIF); Sun Moon Lake, Y. Kudo & S. Sasaki 15317 (TAl); Okada s, n. (TAl); Shuishe, Y. Yamamoto s. n. Oct 1929 (TAl); Lake Suisya, S. Sasaki s. n. Iul 1922 (TAl), S. Sasaki s. n. Sep 1929 (TAl); Lienhuachih, Y. Kudo & Y. Yamamoto s: n. lui 1930 (TAl). KAOHSIUNG: Nakahara s. n. Feb 1906 (TAIF). PINGTUNG: E. Matilda 1511 (TAl).

參考文獻

• Sung-Po Li, Tsung-Hsin Hsieh and Chun-Chi Lin, Taiwania 47(4): 246-258. 2002.