Asystasia gangetica ssp. micrantha

小花寬葉馬偕花

naturalized

Asystasia gangetica (L.) T. Anderson ssp. micrantha (Nees) Ensermu

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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名彙資訊

學名發表文獻

Ensermu, Proceedings of the XIIIth Plenary Meeting of AETFAT, Zomba, Malawi 1: 343. 1994. (Proc. XIII Plen. Meet. AETFAT Zomba Malawi)

台灣首次記錄發表文獻

Hsu, Chiang & Peng, Taiwania 50(2): 118. fig. 1 & 2. 2005.

異名

Asystasia gangetica auct. non (L.) Anderson

Chen, Naturalized plants of eastern Taiwan 42. 2008. (Nat. Pl. East. Taiwan, 東台灣歸化植物)

各語言俗名

中

熱帶報春花. 十萬錯花.

參考資料

Wu, Yang, Teng, Chang, Yang and Hsieh, Taiwania 55(2): 145. 2010.
Shih-Huei Chen, Naturalized plants of eastern Taiwan . 2008. (Nat. Pl. East. Taiwan, 東台灣歸化植物)

特徵描述

生活型

herb

形態特徵

Herbs perennial, erect, 15 to 60 cm tall, basal stems procumbent, stems square with scattered hairs.
Leaves opposite, ovate, 4-9 cm long, 2-5 cm wide, obtuse at apex, acute to round at base, entire, the lateral nerves 5-8-paired.
Inflorescences terminal racemes, often unilateral; bracts 3, deltoid, minute; calyx lobes 5, linear, 4-5 mm long, about 1 mm wide, setaceous; corolla zygomorphic, about 1.0-1.3 cm in diameter, white, bell-shaped, corolla-tube 1.5-2.0 cm long, straight, narrow, the throat campanulate, the limb lobes 5, lobes near orbicular, 4 mm in diameter, under one has purple blotches inside; stamens 4, didynamous, included, filament 3-5 mm long; anthers 2-loculate; style 2.5 mm long; ovary with 2 ovules per locule.
Capsule club-shaped, 2.0-2.5 cm long, 4 mm diameter, distinctly stipitate, pubescent, enclosed in persisent calyx; seeds 2-4, about 3 mm in diameter, compressed orbicular.

分布

世界 : native in Africa, India and Sri Lanka. The introduction of this weed has caused serious disturbance to natural habitats, particularly in Malaysia, Indonesia and the Pacific islands.

引證標本

Tainan Co.: Baihe Town, Kuanziling, Hongye Park, meadow, locally abundant, Jan. 26, 2005, T. W. Hsu & J. J. Peng 11756 (TESRI, Taiwan Endemic Species Research Institute).