えぞひなのうすつぼ (蝦夷雛の臼壺) [Index] [Back] わが国の本州北部から北海道、それに千島列島南部やサハリン南部に分布しています。海岸の岩礫地に生え、高さは９０〜１５０センチになります。茎は直立して太く、４稜があり、稜に幅の狭い翼状のひれがあります。葉は広卵形で先端は尖り、縁には鈍い鋸歯があります。６月から７月ごろ、茎の先に円錐花序をだし、多くの花をまばらに咲かせます。暗赤紫色の花を疎らに咲かせます。花冠は淡黄緑紫色または紫褐色で、上唇が２裂し、下唇は３裂します。花柄には腺毛が生えます。 ゴマノハグサ科ゴマノハグサ属の多年草で、学名は Scrophularia alata (syn. Scrophularia grayana)。英名はありません。 The "Ezo-hinano-usutsubo" (Scrophularia alata) belongs to Scrophulariaceae (the Figwort family). It is a perennial herb that is distributed in northern Honshu and Hokkaido in Japan, as well as the southern Kuril Islands, and southern Sakhalin. It grows on rocky coastal areas and reaches a height of 90 to 150 cm. The stem is erect and thick, with four ribs and narrow wing-like fins on the ribs. The leaves are broadly ovate with pointed tips and blunt serrations along the edges. From June to July, panicles appear at the tips of the stems, blooming with many sparse flowers. The corolla is pale yellowish-greenish-purple or purplish-brown, with the upper lip divided into two lobes and the lower lip divided into three lobes. The peduncles are covered with glandular hairs. 北海道礼文町船泊村鉄府にて、2025年06月10日撮影。 Shu Suehiro shu@botanic.jp