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Dioscorea sansibarensis Pax (Dioscoreaceae), A Newly Naturalized Plant in Taiwan

臺灣薯蕷科的新歸化植物-非洲薯蕷

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摘要


Dioscorea sansibarensis Pax, native to tropical and subtropical Africa and Madagascar, was found to be a newly naturalized plant in Taiwan. This species is characterized by the apex of its leaves being conspicuously caudate, irregularly roundish aerial bulbils, and one to three pistillate inflorescences per axil, each up to 50 cm long. A morphological description, line drawings, color photographs, and habitat are provided here.

並列摘要


非洲薯蕷(新擬)原產熱帶非洲及馬達加斯加島,本文報導其為臺灣新歸化植物,該植物的葉明顯尾狀,零餘子呈不規則圓形及雌花序1-3腋生,長可達50公分,形態特徵明顯不同於臺灣所產的該屬植物。本文提供非洲薯蕷的形態描述、手繪圖與彩色圖片,並報告其分布及生態。

並列關鍵字

零餘子 非洲薯蕷 薯蕷科 新歸化植物 臺灣

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