Alliaria petiolata is a very common mustard flower in Europe. If the leaves are comminuted they smell like garlic. In July/August they produce very interesting seeds which I hope will be a macro subject for me then.
@paintdipper@kellc@karo@groovygirlrn Thanks for your nice comments. Today I added this pic in the german version of the Wikipedia article about Alliaria, my very first Wikipedia entry :)