...A general term for perennial monocotyledonous plants of the Bromeliaceae family (illustration). Many species are cultivated for decorative purposes because of their beautiful flowers and leaves. Most are herbaceous plants with short stems and stiff, semi-cylindrical, serrated leaves arranged radially. The bases of the leaves often embrace each other to form a water tank, and the multicellular, shield-like hairs on the leaf surface absorb water and nutrients from the tank or rainwater. The inflorescences often develop persistent, beautifully colored bracts. The flowers have three persistent outer tepals and three petal-like inner tepals that wither and fall off after flowering. ... *Some of the terminology that mentions "Ananas" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…単子葉植物パイナップル科の多年草の総称(イラスト)。花や葉がきれいなため多くの種が観賞用に栽培されている。多くは短い茎に半円筒状で鋸歯のある硬質の葉を放射状にむらがりつける草本。しばしば葉の基部は相互に抱きあい貯水槽(タンク)を形成し,葉の表面に生えた多細胞の楯状の毛(吸収毛)が,貯水槽や雨水から水分や養分を吸収する役割をする。花序には宿存性の美しい色の苞葉が発達することが多い。花は3枚の宿存する外花被片と,開花後は枯れ落ちる花弁状の3枚の内花被片を有する。… ※「Ananas」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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