Are these the grass seeds that LEGO you if you walk barefooted across the lawn?
They are sandspurs, or sandburrs as we call them in West Texas. They grab your pant legs, your socks, your actual legs, and if you step on them barefooted, you will be in pain. LOL! I’ve stepped on a thousand of them when I was a kid. They used to grow in most yards till people found ways to get rid of them.
The Chinese would deserve these. LOL!