Yellow-flowered hawkweed - Yellow-flowered hawkweed

Japanese: キバナハタザオ - きばなはたざお

A relatively rare perennial plant of the Brassicaceae family that grows in mountain grasslands (illustration). The stem is erect, 60-120 cm tall, sparsely branched at the top, and hairy. The leaves are alternate, and those at the bottom have petioles and are pinnately lobed, but those at the middle and higher parts of the stem have very short petioles and are not divided, and are ovate to oblong-lanceolate with pointed tips and irregular low serrations at the edges. In June and July, the plant produces sparse inflorescences and produces yellow flowers. The sepals are thin and 7 mm long. There are four petals, each about 1 cm long.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

山の草地に生えるアブラナ科の比較的まれな多年草（イラスト）。茎は直立して高さ60～120cmとなり，上部でまばらに枝を出し，毛がある。葉は互生し，下部のものは葉柄があって羽状に裂けるが，茎の中部以上の葉はごく短い葉柄があって分裂せず，卵形から長楕円状披針形で先がとがり，ふちに不揃いの低い鋸歯がある。6～7月ごろ，まばらな花序を作って黄色の花をつける。萼片は細く，長さ7mm。花弁は4枚で長さ約1cm。

出典　株式会社平凡社世界大百科事典第２版について　情報

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