It is an evergreen perennial plant of the Agavaceae family (APG classification: Asparagaceae). It has almost no stems, and the short rhizomes thicken and spread horizontally. The leaves grow in clusters, are long and thin, 30-45 cm long, 2-3 cm wide, flexible, drooping at the top, and are powdery white-green in color. The fibers come loose from the edges in the form of white threads, hence the name. In June and July, it produces panicles on flower stalks 1-2 meters tall, and white flowers with six petals, each about 4 cm long, open downward. It is native to southern North America, and is planted in gardens in areas south of the Kanto region. It is propagated by division. The variety, Filitran, has yellow stripes on its leaves. [Yoshio Kobayashi May 21, 2019] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
リュウゼツラン科(APG分類:キジカクシ科)の常緑多年草。茎はほとんどなく、短い根茎が肥厚して横にはう。葉は叢生(そうせい)し、長剣状で細く、長さ30~45センチメートル、幅2~3センチメートル、しなやかで上半部が垂れ、粉白緑色である。縁(へり)から白い糸となって繊維がほぐれ出るので、この名がある。6~7月ごろ、高さ1~2メートルの花茎に円錐(えんすい)花序をつけ、長さ約4センチメートルの6弁の白色花が下向きに開く。北アメリカ南部原産で、関東地方以南で庭園に植える。繁殖は株分けによる。品種のフイリイトランは、葉に黄色の条線が入る。 [小林義雄 2019年5月21日] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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