A perennial plant of the Lamiaceae family (APG classification: Lamiaceae) that grows in wetlands. It has a white, long, slender underground stem. The stem is square with inverted thorns and is 40-70 cm tall. The leaves are opposite and short-stalked, 4-8 cm long and 1-2 cm wide. In summer, the plant produces a spike at the end of the stem, which produces pale red-purple, lip-shaped flowers. The lower lip is three-lobed and has red spots. It is distributed from Hokkaido to Kyushu, the Korean Peninsula, China, and the Russian Far East. The fruits resemble sesame seeds, but are called inugoma because they are useless. The woolly inugoma variety has no hairs or thorns and is distributed from central Honshu to Okinawa Prefecture, the Korean Peninsula, and China, while the Ezo inugoma has many open hairs and is distributed from Sakhalin to Hokkaido. [Gen Murata August 20, 2021] The stem is square with inverted thorns, and the leaves are opposite. In summer, the flower spikes grow at the end of the stem, and bear pale red-purple lip-shaped flowers. The lower lip is three-lobed and has red spots. ©Shogakukan Photo by Okuyama Hisashi "> Dog sesame Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
シソ科(APG分類:シソ科)の多年草で、湿地に生える。白くて細長い地下茎がある。茎は方形で逆向きの刺(とげ)があり、高さ40~70センチメートル。葉は対生し短柄があり、長さ4~8センチメートル、幅1~2センチメートル。夏、茎の先に花穂をつくり、淡紅紫色で唇形の花をつける。下唇は3裂し紅色の斑点(はんてん)がある。北海道から九州、朝鮮半島、中国、極東ロシアに分布する。分果がゴマに似ているが、役にたたないことからイヌゴマという。変種のケナシイヌゴマは毛や刺がなく、本州中部から沖縄県、朝鮮半島、中国に分布し、エゾイヌゴマは開出毛が多く、樺太(からふと)(サハリン)から北海道にかけて分布する。 [村田 源 2021年8月20日] 茎は方形で逆向きの刺があり、葉は対生。夏、茎の先に花穂をつくり、淡紅紫色の唇形花をつける。下唇は3裂し、紅色の斑点がある©Shogakukan 撮影/おくやまひさし"> イヌゴマ 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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