A type of bamboo of the grass family (APG classification: Poaceae). It can reach a height of 20 meters and a diameter of about 10 centimeters. It has two nodes, which is the same as Madake, but while Madake's culm is dark green, Hachiku's is whitish or gray-green. This is why it is called Hachiku (light bamboo). The skin of the bamboo shoots is pale pink with scattered long hairs, and does not have the black spots of Madake. The leaves are lanceolate, 9 to 13 centimeters long and about 1.5 centimeters wide. The hairs on the upper edge of the leaf sheath stand almost upright. It was introduced from China long ago and is widely cultivated from southern Hokkaido to Okinawa. The culms are strong and can be split into small pieces, so they are used to make the frames of tea whisks and lanterns. The culms of the parent species, black bamboo, are initially green and turn black-purple after 2 to 3 years. [Sadao Suzuki September 17, 2019] [Reference] |©Kanzo Otawa "> Main types of bamboo (1) [specimen illustrations] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
イネ科(APG分類:イネ科)のタケ・ササ類。高さ20メートル、径約10センチメートルに達する。節は2環があり、その点でマダケと同じであるが、マダケは稈(かん)面が濃緑色であるのに対し、ハチクは帯白色または灰緑色である。そのため淡竹(はちく)の名がついた。タケノコの皮は淡桃色で長い毛を散生し、マダケのような黒い斑紋(はんもん)はない。葉は披針(ひしん)形で長さ9~13センチメートル、幅約1.5センチメートル。肩毛(かたげ)(葉鞘(ようしょう)の上縁の毛)は、ほぼ直立する。古く中国から渡来し、北海道南部から沖縄で広く栽培される。稈は強く、とくに細割りがきくので、茶筅(ちゃせん)や提灯(ちょうちん)の骨の材料とする。母種クロチクは稈は初め緑色で、2~3年後に黒紫色に変わる。 [鈴木貞雄 2019年9月17日] [参照項目] |©大多和鐘三"> タケのおもな種類(1)〔標本画〕 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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