Luzula

...A perennial plant of the family Juncaceae (illustration), commonly found in light grasslands and roadsides in low mountain areas. Widely distributed throughout Japan. The flower stalk is 10-30 cm tall. A single densely packed head-shaped inflorescence is borne at the top of the stem. Flowering season is April-May. The petals are small, 2.5-3 mm long, and brown, so the inflorescence also appears brown. The leaves are linear and have long white hairs at the edges. The underground stems are tubular, and in some areas they are called Shibaimo (bamboo-leaf rush) after this characteristic. There are records of people eating the fruit during times of food shortage. The genus Luzula (English name: wood rush) is widely distributed in the temperate zone of Eurasia and includes about 80 species. ...

*Some of the terminology explanations that mention "Luzula" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…低山地の明るい草地や路傍に普通にみられるイグサ科の多年草（イラスト）。日本全土に広く分布する。花茎は高さ10～30cm。茎頂に，1個の頭状に密集した花序をつける。花期は4～5月。花被片は小さく長さ2.5～3mmで，褐色を帯びるため，花序も褐色に見える。葉は線形でふちに長白毛がある。地下茎は塊状で，この性質にちなんでシバイモと呼ぶ地方もある。食料不足のときには果実を食べた記録がある。　スズメノヤリ属Luzula(英名wood rush)はユーラシアの温帯に広く分布し，約80種を含む。…

※「Luzula」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。

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