An annual plant of the Rubiaceae family (APG classification: Rubiaceae). The stem is round and thin, 5-40 cm tall. The leaves are linear and 1-3.5 cm long. A single flower grows in each leaf axil. In Japan, it blooms in the summer, but in the tropics, it blooms and bears fruit all year round. The corolla is white, tubular, with four lobes, and 2-3 mm long. The ovary is inferior and has two chambers. The fruit is spherical with pointed sepals and contains many small seeds. It is widely distributed in Japan, East Asia, and tropical Asia. It is named after the fact that it resembles a cleaver and has two leaves. In China, it is used as a medicine for bruises. There are more than 300 species in the Diptera genus, distributed mainly in the tropical regions of the world. They are herbs or small shrubs, many of which are used for medicinal purposes in China, and some species are cultivated in India, where their roots are used to produce red and purple dyes. [Makiyuki Fukuoka, May 21, 2021] ©Kanzo Otawa "> Diptera gracilis [specimen drawing] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
アカネ科(APG分類:アカネ科)の一年草。茎は丸くて細く、高さ5~40センチメートル。葉は線形で長さ1~3.5センチメートル。花は葉腋(ようえき)に1個ずつつき、日本では夏に開くが、熱帯では年じゅう開花、結実する。花冠は白色、筒状で4裂し、長さ2~3ミリメートル。子房は下位で2室。果実は球形で先にとがった萼片(がくへん)があり、多数の小さい種子がある。日本、および東アジア、熱帯アジアに広く分布する。名は、ヤエムグラに似て、葉が2枚ずつつくのでいう。中国では打ち身などの薬とする。 フタバムグラ属は、世界の熱帯を中心に300種以上分布する。草本または小低木で、中国では多くの種が薬用とされ、インドでは根から赤色や紫色の染料をとる種があり、栽培される。 [福岡誠行 2021年5月21日] ©大多和鐘三"> フタバムグラ〔標本画〕 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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