A biennial plant of the Asteraceae family (APG classification: Asteraceae). Native to Europe, it is an introduced plant and is often found in urban wastelands and roadsides. It grows to a height of 50 cm to 1 m. It resembles the native common sowweed, but can be distinguished by the prickly tips of the sawtooth leaves, which hurt when touched, the glossy leaf surface, and the rounded leaf base. It produces yellow flower heads measuring 2 cm in diameter from spring to autumn. [Tatsuyoshi Morita February 18, 2022] [Reference item] |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
キク科(APG分類:キク科)の一、二年草。ヨーロッパ原産の帰化植物で、都市の荒れ地や路傍に多い。高さ50センチメートルから1メートルになる。在来種のノゲシに似るが、葉の鋸歯(きょし)の先が刺(とげ)となり、触ると痛いこと、葉面に光沢があること、葉の基部が円いことなどで区別できる。春から秋にかけて径2センチメートルの黄色の頭花をつける。 [森田龍義 2022年2月18日] [参照項目] |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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