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わが国の固有種で、本州中部の八ヶ岳や南アルプスに分布しています。山地に生え、高さは１メートルほどになります。よく分枝して、若い枝は紫褐色を帯びます。葉は広楕円形で対生し、全縁です。５月から６月ごろ、枝先の葉腋に小さな暗紅紫色の花を２個づつ咲かせます。果実は液果で８月に赤く熟します。合着はしません。和名は、葉が比喩的に小米のように小さいということから。
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スイカズラ科スイカズラ属の落葉低木で、学名は Lonicera linderifolia var. konoi。英名はありません。
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"Kogome-hyotan-boku" (Lonicera linderifolia var. konoi) belongs to Caprifoliaceae (the Honeysuckle family). It is a small deciduous tree that is endemic to Japan and is distributed in the Yatsugatake and Southern Alps in central Honshu. It grows in mountainous areas and grows to about 1 m in height. It is well branched, and the young branches are purplish brown in color. The leaves are broadly elliptic, opposite, and entire. 2 small dark reddish-purple flowers bloom in the axils of the leaves at the ends of the branches from May to June. The fruits are berries that ripen to red in August. They do not connate. The Japanese name comes from the fact that the leaves are figuratively small like small rice.
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長野県茅野市北山「麦草ヒュッテ」にて、2006年07月08日撮影。
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こごめひょうたんぼく (小米瓢箪木)
shu@botanic.jp