Conioselinum filicinum (Wolff) Hara

Japanese: ミヤマセンキュウ（英語表記）Conioselinum filicinum (Wolff) Hara

A perennial plant of the Apiaceae family that grows in subalpine grasslands. Its Japanese name means "Miyama Kawakyo" (deep mountain river angelica), derived from the fact that it grows deep in the mountains. The stem is 40-80cm tall, upright, branches at the top, and hollow. The basal leaves have long petioles, are divided into three trifoliate lobes, and are slightly triangular overall, with pointed lobes at the tips. The leaves on the stem have short petioles that form sheaths that embrace the stem. The flowers bloom in August and September, are small and white, and form compound umbels at the ends of the branches. There are five petals that roll inward at the tips. The inflorescence is 6-10cm in diameter, with about 15-25 branches, and has short, nipple-like hairs.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

亜高山帯の草地に生えるセリ科の多年草。和名は深山川芎の意で，深山に生えるところからついた。茎は高さ40～80cm，直立して上部で分枝し，中は中空である。根出葉は長い葉柄があり，3回3出羽状に分裂し，全体やや三角形で，裂片の先はとがる。茎につく葉は短い葉柄が鞘状になって茎を抱く。花は8～9月に開き，白色で小さく，枝先に複散形花序を作る。花弁は5枚で先は内に巻く。花序は径6～10cm，枝は15～25本位あって，乳頭状の短毛がある。

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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