An odd type of plant i am seeking?

Question

my step father has told me about a plant he found as a child somewhere in minnesota. he says they grew everywhere and when you would pick them they would be dart like and could be thrown as such and would actually stick into things. does anyone know where this plant is found or even what its called?

Answer 1

How about cockleburs?

Cockleburs have literally hitchhiked across Europe and North America. In some lowland areas it is considered to be a troublesome weed by farmers and ranchers. But there may be at least two interesting uses for cockleburs. Because they readily attach to cloth material, they can be used as "darts" in a cocklebur dart game, and sixteen of the spiny burs can be glued together to form a perfect little poodle dog.

Answer 2

OOOO!! They have a ton of those things at my school!

I'm not sure what they're called. The friends keep throwing them at me, its so annoying.

Ok, I'm not sure why im answering this question, if your can call this an answer

Answer 3

Interestingly, I used to use grass seeds that had a long filament attached to the seed that were like spears!  My brother and I would pull the seeds from the grass and throw them at our sisters' bare legs until they came after us with revenge in mind.  The shafts of the grass seeds are sensitive to the humidity in the air.  As the shaft alternately is wetted and dried, it will literally s***w the seeds into the soil!