コセンダングサ cobbler's pegs

　通称ひっつき虫と呼ばれる外来種のコセンダングサです。草むらに不用意に入ると、棘のある種が、服にひっつき取れにくいので困ります。種は細長く、先端には２～３本の突起が出ており、そこに逆向きの細かな棘がたくさんついています。

　It is a foreign species cobbler's pegs, commonly known as prickly seed. If you carelessly enter the grass, the seeds with spines will stick to your clothes and will be hard to remove. The seeds are long and slender, with 2 or 3 projections at the tip and many small, oppositely directed spines.