A biennial herb of the Asteraceae family (APG classification: Asteraceae). The stem is 0.4-1.5 meters tall. The leaves are deeply pinnately lobed, with sharp lobes, glabrous on both sides, and similar to carrot leaves. The basal leaves grow in clusters, but the leaves on the stem grow alternately. In August and September, the upper part of the stem branches out and produces panicles. The flower heads are spherical, 5-6 mm in diameter, and open downward. They grow in fields, riverbanks, and wastelands from Honshu to Kyushu, and are also found in Korea and China. It is thought to have been naturalized after being imported as a medicinal plant. [Hiroji Koyama February 18, 2022] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
キク科(APG分類:キク科)の一、二年草。茎は高さ0.4~1.5メートル。葉は2回羽状に深裂し、裂片の先は鋭く、両面無毛で、ニンジンの葉に似る。根出葉は集まってつくが、茎の葉は互生する。8~9月、茎上部が多く分枝し、円錐(えんすい)花序をつける。頭花は球状で、径5~6ミリメートル、下向きに開く。本州から九州の畑や川岸、荒れ地などに生え、朝鮮、中国にも分布する。薬用植物として輸入されたものが、帰化したと考えられている。 [小山博滋 2022年2月18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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