...It is distributed west of Aichi Prefecture in Honshu, through Shikoku, Kyushu, and the Ryukyu Islands, and then to southern China, Southeast Asia, Indonesia, and Sri Lanka. Rhynchospora (English name: breakrush) is a large genus of the Cyperaceae family with nearly 300 species worldwide. Most species, such as R. rubra (Lour.) Makino and R. brownii R.et S., are tropical, but a few species are distributed in temperate and polar regions. For example, R. alba (L.) Vahl, which has white crescent-shaped spikelets, is found in the high mountains of Honshu and Hokkaido, but is also distributed more widely in the polar regions of Eurasia and North America. ... *Some of the terminology that mentions "Igakusa" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…本州の愛知県以西,四国,九州,琉球諸島を経て,中国南部,東南アジア,インドネシア,スリランカに分布する。 イヌノハナヒゲ属Rhynchospora(英名breakrush)は全世界に300種近くあるカヤツリグサ科の大きな属で,イガクサR.rubra (Lour.) MakinoやトラノハナヒゲR.brownii R.et S.のようにほとんどの種は熱帯産であるが,少数の種は温帯,寒帯にも分布している。たとえば白い三日月形の小穂をもつミカヅキグサR.alba (L.) Vahlは本州の高山や北海道に見られるが,さらに広くユーラシア大陸や北アメリカの寒帯に分布する。… ※「イガクサ」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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