ゆきわりいちげ (雪割一華) [Index] [Back] わが国の本州、近畿地方以西から四国・九州に分布しています。雑木林の林縁や林床に生え、高さは１５〜３０センチになります。葉は深い緑色でやや褐色を帯び、白っぽい班があります。葉は秋に出て冬を越します。根出葉は３全裂し、小葉は無柄で、鋸歯があります。３月ごろ、花茎を出して薄く紫色を帯びた花を咲かせます。花弁はなく、花弁に見える部分は萼片で、その数は１２〜２２個あります。雄しべは１０〜１４個あります。地下茎で増え、一つの群生は同じ遺伝子を持つので結実はしません。他の群生の花と交配すれば結実し、楕円形の痩果となります。初夏には地上部は枯れて姿を消す、スプリングエフェメラルです。 キンポウゲ科イチリンソウ属の多年草で、学名は Anemone keiskeana。英名はありません。 The "Yukiwari-ichige" (Anemone keiskeana) belongs to Ranunculaceae (the Buttercup family). It is a perennial herb that is found from the Kinki region and westward on Honshu, as well as in Shikoku and Kyushu. It grows along the edges and on the forest floor of mixed woodlands, reaching a height of 15 to 30 cm. The leaves are deep green with a slight brownish tint and have whitish spots. The leaves emerge in the fall and persist through the winter. The basal leaves are deeply three-lobed; the leaflets are sessile and serrated. Around March, it produces flower stalks and blooms with pale purple flowers. It has no petals; the parts that appear to be petals are actually sepals, of which there are 12 to 22. There are 10 to 14 stamens. It propagates via rhizomes, and since all plants within a single clump share the same genetic makeup, they do not produce fruit. However, if they cross-pollinate with flowers from other clumps, they will bear fruit, producing an ovate-shaped achene. In early summer, the aboveground parts wither and disappear; it is a spring ephemeral. 茨城県つくば市「つくば実験植物園」にて、2026年03月07日撮影。 Shu Suehiro shu@botanic.jp