Himalayan Balsam

So often mistaken for Japanese knotweed by the uninitiated until it flowers, the Himalayan Balsam has very amusing exploding seed heads. Which is a pretty cool method for spreading  anything. The seeds taste like young hazel or cob nuts, slightly grainy in texture due to their size but a fun country walk snack. 

I photographed some yesterday for identification. I need to do a little research but, I think they could be ground into a flour once dried. Once the seeds go black they become hard and more than a little unpleasant to chew on.