I just kept on seeing this 'weed' along my lane... It turns out that it's edible and also that it's biennial - so that explains why I totally missed it last year ! I learn something everyday...
Here's the obligatory closeup :
There is really interesting information about it on this website.
I was particularly keen to learn about its uses to relieve some ailments. If you happen to know, I will welcome your tips and also warnings regarding its use. Thanks in advance !