nailrod

tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down; its long flat leaves are used for making mats and chair seats; of North America, Europe, Asia and North Africa

成熟すると破裂して大量の綿毛を散らす円筒形の果穂を持つ背の高い湿地植物；長く平らな葉は敷物や椅子の座面に利用される；北米、ヨーロッパ、アジア、北アフリカ原産