A perennial plant of the Lamiaceae family (APG classification: Lamiaceae). It is also called kakutoranoo (horned tiger tail) because the cross section of the stem is square, and is sometimes called by its genus name, Physostegia. The stem is upright and 0.6 to 1.2 meters tall. The leaves are opposite, lanceolate, and sawtoothed. In July and August, dozens of small, lip-shaped tubular flowers grow in spikes at the top of the stem. The flowers are usually pale pink, but there are also white varieties. Native to North America. It is used as a cut flower and for flower beds. It is propagated by dividing the roots into individual roots around the spring and autumn equinoxes. It can also be grown from seed. It is a hardy perennial plant that is resistant to the cold, but is weak to extreme dryness in summer. Also, if it is cultivated continuously, the roots will grow long and the flowers will not bloom well, so it is best to replant it every year. [Keiji Kanda September 17, 2021] The leaves are lanceolate with sawtooth. From July to August, dozens of small, lip-shaped, pale pink tubular flowers grow in spikes at the top of the stem. There are also white varieties. Also known as kakutoranoo ©Shogakukan Photo by Masatoshi Hirose "> Flowering stripes Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
シソ科(APG分類:シソ科)の多年草。茎の断面が四角形であることからカクトラノオ(角虎尾)ともいい、属名のフィソステギアでよぶこともある。茎は直立し、高さ0.6~1.2メートル。葉は対生し、披針(ひしん)形で鋸歯(きょし)がある。7~8月、茎頂に小さな唇状の管状花を数十個、穂状につける。花色は普通は淡紅色であるが、白色の品種もある。北アメリカ原産。切り花、花壇用として観賞する。繁殖は株分けにより、春、秋の彼岸(ひがん)ころ、地下茎を1本ずつ株分けする。実生(みしょう)も可能である。寒さに強いじょうぶな宿根草であるが、夏の極端な乾燥には弱い。また連作すると地下茎が長く伸び、花つきが悪くなるので、毎年植え替えをするとよい。 [神田敬二 2021年9月17日] 葉は披針形で鋸歯がある。7~8月、茎頂に小さな唇状の淡紅色の管状花を数十個、穂状につける。白色の品種もある。別名カクトラノオ©Shogakukan 撮影/広瀬雅敏"> ハナトラノオ 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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