Don't you love Cow Parsley (aka wild chervil or Queen Anne's lace)? Not sure if it grows in other countries but it grows wild in abundance in England and seems to pop up everywhere. The Common across the road from my house is full of Cow Parsley in the areas that have been left wild. I love to jog through it in the early mornings. 

I found a whole lot of it growing at the back of my property and couldn't resist picking it and putting a large vase of it in the kitchen next to my outside space.  Isn't it gorgeous? Best of all it is free and lasts very well in water!