Have you ever stood on a prickle? Going barefoot in summer often meant a foot full of bindii prickles where I grew up.
These prickles that are even more painful to stand on.
![5376444-PPT](https://i1.wp.com/scifundchallenge.org/firesidescience/wp-content/uploads/2017/01/5376444-PPT.jpg?resize=300%2C211&ssl=1)
What good are prickles anyway?
A prickle is attached to a seed which is catching a ride somewhere. The sharp (ouch) pointy bit attaches it to something, usually an animal. If you take a dog for a walk through long grass you might discover a few prickles and other seeds that stick well to dogs and socks.
I found all these different seeds sticking to my socks after a walk in long grass. They’re full of hooks, darts and bristles.
![burr](https://i2.wp.com/scifundchallenge.org/firesidescience/wp-content/uploads/2017/01/burr-1-e1485643356655-300x298.jpg?resize=300%2C298&ssl=1)
And these…
![arrowhead seed](https://i2.wp.com/scifundchallenge.org/firesidescience/wp-content/uploads/2017/01/arrowhead-seed.jpg?resize=511%2C230&ssl=1)
And this…
![photo (88)](https://i2.wp.com/scifundchallenge.org/firesidescience/wp-content/uploads/2017/01/photo-88-e1485687490382-300x272.jpg?resize=300%2C272&ssl=1)
I’ll bet where you live there are different types of prickles and other things that can stick to your clothes.
PHOTO ATTRIBUTIONS
Three corner jack (Emex australis): Julia Scher, Federal Noxious Weeds Disseminules, USDA APHIS ITP, Bugwood.org
licensed under a Creative Commons Attribution-Noncommercial 3.0 License.