It is a deciduous or evergreen shrub of the legume family (APG classification: Fabaceae). It is found in the Mediterranean coastal regions, North Africa, and the Canary Islands. It was introduced to Japan during the Hoei era (1704-1711). Its name comes from the Portuguese word retama. The twigs are gray-green and slender. The leaves are sparsely alternate, lanceolate, and 3 cm long. From June to September, the racemes grow at the ends of the branches, and fragrant yellow butterfly-shaped flowers bloom sparsely. The fruits are linear and short-haired. Young branches are used for knitting. It is propagated by seed and green branch cuttings. It is cultivated as an ornamental plant in warm areas, but it is difficult to grow near Tokyo due to its poor cold resistance. [Yoshio Kobayashi November 20, 2019] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
マメ科(APG分類:マメ科)の落葉または常緑低木。地中海沿岸地方、北アフリカ、カナリア諸島に分布する。日本へは宝永(ほうえい)年間(1704~1711)に渡来した。名は、ポルトガル語のレタマに由来する。小枝は灰緑色で細長い。葉はまばらに互生し、披針(ひしん)形で長さ3センチメートル。6~9月、枝先に総状花序を頂生し、芳香のある黄色の蝶形花(ちょうけいか)をまばらに開く。果実は線形で短毛がある。若枝を編物細工に用いる。繁殖は実生(みしょう)、緑枝挿しによる。暖地で観賞用に栽培するが、耐寒性が弱く、東京近辺での栽培はむずかしい。 [小林義雄 2019年11月20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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