Bittercress is the absolute worst garden weed

[Lisak1]

I think every area has weeds that are noxious and very difficult to get rid of, but one that can PUNCTURE TIRES takes the prize!

 

[GBBUDD]

We have a version of that but the seeds are only a half inch long tube about 1/6 thick

 

[gimpy]

In the west it's Goatheads. They puncture tires, go through the soles of shoes and each seed from a "head" can live 7 years. View attachment 162904

I hate goat heads. Pull them whenever I find them. And they do hurt.