A biennial plant of the Brassicaceae family (APG classification: Brassicaceae). The stem is erect or branched from the base, 10-30 cm tall, and the entire plant is covered with stellate hairs. The basal leaves are spatula-elliptical, 2-4 cm long, 8-15 mm wide, irregularly toothed, and almost sessile. The stem leaves are 1-3 cm long, and the racemes bear yellow, four-petaled flowers. The petals are 2.5 mm long and broadly spatula-shaped, with two lobes at the tip and a claw at the bottom. The sepals are elliptical, 1.5-2 mm long, and four of the six stamens are long. The fruit is linear-elliptical, flattened, 6-8 mm long, densely hairy, and shorter than the stalk. The seeds are broadly elliptical and 0.4 mm long. Young seedlings are eaten, and the seeds are used as a traditional Chinese medicine. It grows in sunny places such as fields and river banks. There are about 400 species in this genus worldwide, and about 10 species in Japan, and they are widely distributed throughout Japan and the temperate zones of the Northern Hemisphere. [Junko Kobayashi November 13, 2020] Yellow, four-petaled flowers grow in racemes from March to May. The petals are broad and spatula-shaped, split into two at the tip, and have claws at the bottom. ©Shogakukan "> Shepherd's purse Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
アブラナ科(APG分類:アブラナ科)の二年草。茎は直立または根際から分枝し、高さ10~30センチメートル、全株に星状毛がある。根出葉はへら状楕円(だえん)形で長さ2~4センチメートル、幅8~15ミリメートル、不ぞろいの鋸歯(きょし)があり、ほとんど無柄。茎葉は長さ1~3センチメートル、総状花序に黄色の4弁花をつける。花弁は長さ2.5ミリメートルで広いへら形、先端は2裂し下部につめがある。萼片(がくへん)は楕円形で長さ1.5~2ミリメートル、雄しべ6本中4本は長い。果実は線状楕円形で扁平(へんぺい)、長さ6~8ミリメートル、細毛を密生し、果柄より短い。種子は広楕円形で長さ0.4ミリメートル。若苗を食用にし、種子を漢方薬として用いる。畑、川の土手など日当りのよい所に生える。この属は世界に約400種、日本に約10種あり、日本全土、北半球の温帯に広く分布する。 [小林純子 2020年11月13日] 3~5月、総状花序に黄色の4弁花をつける。花弁は広いへら形で、先端は2裂し、下部につめがある©Shogakukan"> イヌナズナ 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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