An annual plant of the Asteraceae family. The stem is erect, 0.5-1.2 meters tall, and densely hairy at the top. The leaves are opposite, ovate or triangular-ovate, and have three veins. It flowers from September to October. The ray flowers are yellow, about 3 mm long, and have three lobes at the tip. There are five spatula-shaped involucre segments, which are sticky with glandular hairs. The achene is about 3 mm long and has no thorns. When young, it looks similar to cocklebur, but cocklebur has unisexual flowers and thorny fruits. Cocklebur grows in mountainous areas and urban grasslands, and is distributed in Japan, the Korean peninsula, and central and southern mainland China. [Hiroyuki Koyama] [Reference] |It grows on roadsides and in grasslands, and produces yellow ray-shaped flowers from September to October. ©Shogakukan "> Menamomi The yellow ray florets are about 3 mm long. The five spatula-shaped involucre segments are covered with glandular hairs and are sticky. ©Shogakukan Photo by Okuyama Hisashi "> Menamomi flower Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
キク科の一年草。茎は直立し、高さ0.5~1.2メートル、上部は開出毛を密生する。葉は対生し、卵形または三角状卵形で、三行脈がある。花期は9~10月。舌状花は黄色で長さ約3ミリメートル、先端は3裂する。総包片は5枚でへら形、腺毛(せんもう)があって粘着する。痩果(そうか)は長さ約3ミリメートルで、刺(とげ)がない。若いときの外観はオナモミに似るが、オナモミは単性花で、果実に刺(とげ)がある。メナモミは山地や市街の草地に生え、日本、および朝鮮半島、中国大陸中南部に分布する。 [小山博滋] [参照項目] |道端や草地に生え、9~10月に黄色の舌状花をつける©Shogakukan"> メナモミ 黄色の舌状花は長さ約3mm。へら形の5枚の総包片は、腺毛があって粘着する©Shogakukan 撮影/おくやまひさし"> メナモミの花 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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