空穂草(ウツボグサ) utsubo-gusa

 　昔、武士が弓矢を入れる携帯容器は、靫（うつぼ）と呼ばれました。その形に、花が似ていることが、名前の由来のようです。

　The distribution of this plant is widespread in Europe, North Africa, Australia, North America, etc., but I have not found the English name. utubo-gusa is a Japanese name.

　In the old days, the name of the portable vessel for samurai to put a bow and arrow was utubo. So it was named utubo-gusa(utubo-grass) because the shape of the flower is similar to that.