...In its native habitat, the broken male flowers float on the water surface and attach to the style of the female flower, where pollination occurs. Egeria densa Planch. is native to Argentina, and only male plants have been naturalized in Japan since the Taisho era, where they are propagated vegetatively. Each segment has 3 to 6 leaves in a whorl. ... *Some of the terminology explanations that mention "Egeria densa" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…原産地では切れた雄花が水面を流れて雌花の花柱につき,受粉が行われる。 オオカナダモEgeria densa Planch.はアルゼンチンの原産で,これも雄株だけが大正時代から日本に帰化し,栄養繁殖をしている。葉は各節に3~6枚ずつ輪生する。… ※「Egeria densa」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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