Kawet flower yellow in my garden

This paper flower is a lot of people love it, even in every place many people plant it, but they do not know if the thorns of this paper flowers are very dangerous, even if impaled thorn bunha paper on our feet is very poisonous, our feet can be swollen and fester, also long, then his heart is the same to the beauty of paper flowers there are painful and venomous thorns.