だきばひめあざみ (抱き葉姫薊) [Index] [Back]

Cirsium amplexifolium

Cirsium amplexifolium

Cirsium amplexifolium

Cirsium amplexifolium

わが国の東北地方(福島県を除く)および新潟県に分布しています。低地や山地帯の林縁に生え。高さは150〜200センチになります。茎は粉白色や赤紫色を帯び、中空です。葉は楕円形からやや広い披針形で、縁は全縁から鋸歯縁、羽状など変異に富みます。茎下部の葉は深く切れこみ、基部は耳状に茎を抱きます。茎上部の葉の基部は、茎を抱きます。8月から10月ごろ、枝先に直径3センチほどの紅紫色の頭花を上向きに咲かせます。総苞は鐘形で粘らなく、総苞外片、中片は線状披針形で長く伸び、中ほどで反り返ります。
キク科アザミ属の多年草で、学名は Cirsium amplexifolium。英名はありません。
The "Dakiba-hime-azami" (Cirsium amplexifolium) belongs to Asteraceae (the Aster family). It is a perennial herb that is distributed in the Tohoku region (excluding Fukushima Prefecture) and Niigata Prefecture in Japan. It grows on the edges of forests in lowlands and mountainous areas. It grows to a height of 150-200 cm. The stem is powdery white or reddish purple and hollow. The leaves are elliptic to slightly broad lanceolate, with a variety of margins ranging from entire to serrated to pinnate. The leaves at the base of the stem are deeply cut and enfold the stem like auricles. The base of the leaves at the top of the stem enfolds the stem. From August to October, reddish-purple flower heads about 3 cm in diameter bloom upward at the tips of the branches. The involucrum is bell-shaped and not sticky, and the outer and middle involucral scales are linear-lanceolate, elongated, and curved backward in the middle.
山形市神尾「山形市野草園」にて、2025年05月11日撮影。

Shu Suehiro
shu@botanic.jp