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しばな (塩場菜)
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わが国の各地をはじめ、北半球の暖帯から温帯に広く分布しています。海岸に近い干潟や塩性湿地に群生しますが、埋め立てや護岸工事などによって急速に減少しています。葉は線形で根生し、軟らかくて食用になります。６月から１１月ごろ、花茎を伸ばして総状花序に目立たない淡い黄緑色の花を咲かせます。両性花で、花披はありません。 |
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シバナ科シバナ属の多年草で、学名は Triglochin maritimum。英名は Seaside arrowgrass、Common arrowgrass。 |
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The Seaside arrowgrass (Triglochin maritimum) belongs to the family Juncaginaceae. It is a perennial herb that is widely distributed in the warm to temperate zones of the Northern Hemisphere, including various parts of Japan. It grows in clusters on tidal flats and salt marshes near the coast, but it is rapidly decreasing due to reclamation and revetment work. The leaves are linear and rooted, soft and edible. From June to November, the flower stalks are extended and the pale yellow-green flowers that are inconspicuous in the racemes bloom. It is an amphoteric flower, and there is no perianth. |
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静岡県浜松市「浜名湖花博」にて、2004年09月19日撮影。 |
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Shu Suehiro
shu@botanic.jp
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