Pleurospermum austriacum (L.) Hoffm.ssp.uralense (Hoffm.) Somm.

Japanese: オオカサモチ（英語表記）Pleurospermum austriacum (L.) Hoffm.ssp.uralense (Hoffm.) Somm.

A perennial herb of the Apiaceae family that grows in mountainous regions and northern grasslands (illustration). The stem is erect, reaches a height of about 1m, and is hollow from the base to the tip, with no septa. The lower leaves have long petioles and are 2-3 times pinnate. The upper leaves become gradually smaller and have shorter petioles. There are hair-like thin projections on the veins and leaf edges. Flowers appear in July and August in numerous compound umbels at the ends of the stems and twigs, with involucre bracts at the base of the inflorescence. There are five small, white petals that roll inward at the tips. The fruit is 6-7mm long, ovoid, and almost spherical in cross section, with raised ribs and small projections on the back of the caryopsis.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

山地や北方の草原に生えるセリ科の多年草（イラスト）。茎は直立して高さ1m内外に達し，基部から先まで隔壁がなく中空である。下部の葉は長い葉柄があり，2～3回羽状複葉。上部の葉はだんだん小型になって葉柄も短くなる。脈上や葉の縁には毛状の細突起がある。花は7～8月ごろ，茎の先端や小枝の先に多数の複散形花序を作り，花序の基部には総苞片がある。花弁は5枚で白色，小さく，先は内に巻いている。果実は長さ6～7mm，卵形で横断面はほぼ球形，分果の背面に肋（ろく）が隆起し，小突起がある。

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

<<: Puffbird - Puffbird

>>: Large rock moss - Large rock moss