Scabiosa

This plant is called Widow Flower "Blue Note" here. As far as I know a Widow Flower is a Knautia, not a Scabiosa.
Some more scanning through the web told me, that this is a Scabiosa. Now, some say a Scabiosa columbaria, others a Scabiosa japonica.
Well, either name, it is still a lovely blossom. It reminded me a bit of clover, but of course it isn't.
Thanks to BikerBear for hosting the Flower Friday challenge.