Nature's Calendar - Sticky buds in flower

I don't know the correct name for this plant but when I saw it today it brought back a memory from childhood. We used to pick these buds and throw them at each other to see how many we could get to stick to our clothing. Our mothers must have despaired when it came to washing as there were always some we would miss when removing them.

OK looked up this plant and it is Burdock (of course I should have remembered)