あまみすみれ (奄美菫) [Index] [Back] わが国の奄美大島および沖縄本島北部の固有種です。渓流の岩肌に生え、高さは３〜５センチになります。葉は卵形で長さ５〜１０ミリ、縁には粗い鋸歯があります。５月から６月ごろ、花茎を伸ばして、白色の花を咲かせます。花弁は白く、基部がやや緑色を帯びて、唇弁と側弁の基部には赤紫色の条斑があります。側弁の基部は無毛、唇弁は他の花弁に比べて小さく幅広い披針形をしています。距は白く短いのが特徴です。環境省のレッドリストでは、絶滅危惧ＩＡ類（ＣＲ）に分類されています。 スミレ科スミレ属の常緑多年草で、学名は Viola amamiana。英名はありません。 The "Amami-sumire" (Viola amamiana) belongs to Violaceae (the Violet family). It is an evergreen perennial herb that is endemic to Amami Oshima and the northern part of Okinawa Island in Japan. It grows on rocky surfaces along mountain streams and reaches a height of 3 to 5 cm. The leaves are ovate, 5 to 10 mm long, and have coarse serrations along the edges. From around May to June, it extends a flower stalk and produces white flowers. The petals are white with a slightly greenish base, and the bases of the labellum and lateral petals feature reddish-purple stripes. The bases of the lateral petals are glabrous, while the labellum is smaller and broader than the other petals, with a lanceolate shape. It is characterized by a short, white spur. It is classified as Critically Endangered (CR) on the Ministry of the Environment's Red List. 茨城県つくば市「つくば実験植物園」にて、2026年03月28日撮影。 Shu Suehiro shu@botanic.jp