The spherical, hard, shiny cream-colored fruits are reminiscent of pearls, hence the Japanese name Shinjugaya (pearl grass) (illustration). It is a species of the Cyperaceae family native to the tropics. The stem grows upright from a short rhizome, is about 80 cm tall, has several nodes, and bears several leaves from the center upwards. The leaf sheaths have wings. Around September, sparse panicles appear at the top of the stem, bearing male and female brownish spikelets. The fruits are spherical, about 2.5 mm in diameter, and whitish. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
球形で堅く,光沢のあるクリーム色の果実がちょうど真珠を思わせるので真珠茅(しんじゆがや)の和名がある(イラスト)。熱帯を故郷とするカヤツリグサ科の1種である。茎は短い根茎から直立し,高さ80cmくらいで,数個の節があり,中央部から上に数枚の葉をつける。葉鞘(ようしよう)に翼がある。9月ころ,茎の頂にまばらな円錐花序を出し,雄と雌の褐色を帯びた小穂をつける。果実は球形で径2.5mmくらいで,白っぽい。
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 |
>>: Pearl oyster - Pearl oyster
…This word was once written as 〈Function〉, but th...
...Furthermore, if the friction angle β (=tan -1 ...
…A series of machine-breaking incidents that occu...
…In 1929, he wrote his first song, “Camino del in...
It is a Nichiren sect, and is also the common name...
A state in the southwestern United States. Abbrevi...
...These recent problems facing the American econ...
A rectangular piece of work cloth that covers the...
...The most basic and typical type of learning, a...
…Italian architect. He served Pope Sixtus V (reig...
…The first half of the Early Iron Age in Europe, ...
…The fertile black soils encourage agriculture, a...
〘noun〙① The first time one visits a deity or Buddh...
A coefficient that indicates the direction of a li...
The fourth Shogun of the Kamakura Shogunate. Son o...