A perennial plant of the Primulaceae family (APG classification: Primulaceae). It grows 40-60cm tall, in colonies that run horizontally along underground stems. The leaves are alternate, oblong, and pointed at both ends. In July, a flower spike appears at the top of the stem, and numerous white five-petal flowers bloom from below. The name comes from the long flower spike resembling a tiger's tail. It grows on sunny roadsides in the mountains and fields, and is widely distributed from Japan to China. In wetlands, the closely related Solanum gracilis and Solanum nigra grow. Cultivated species include the exotic Solanum gracilis (creeping), and this group is collectively known as Lysimachia. All are easy to cultivate in Japan's climate. [Tsuneo Torii March 22, 2021] [Reference] | |The leaves are oblong. Around July, a flower spike appears at the top of the stem, and many white five-petal flowers bloom from the bottom. ©Seishohmaru "> Loosestrife ©Yuichi Kadota "> Flower of Loosestrife [morphology] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
サクラソウ科(APG分類:サクラソウ科)の多年草。高さ40~60センチメートル、地下茎を横走して群生する。葉は互生、長楕円(ちょうだえん)形で両端がとがる。7月ごろ茎頂に花穂を出し、多数の白色5弁花が下から咲き上る。名は長い花穂をトラの尾に見立てたものである。山野の日当りのよい道端に生え、日本から中国にかけ広く分布する。湿性地には近縁のヌマトラノオ、クサレダマが生育する。栽培種として外来のヨウシュコナスビ(匍匐(ほふく)性)などもあり、この仲間はリシマキアと総称される。日本の風土にあってどれも栽培が容易である。 [鳥居恒夫 2021年3月22日] [参照項目] | |葉は長楕円形。7月ごろ、茎頂に花穂を出し、多数の白色5弁花が下から咲き上る©Seishohmaru"> オカトラノオ ©門田裕一"> オカトラノオの花〔形態〕 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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