Grannies Bonnet

This flower, beloved by bees, I have a rather love/hate relationship with..It is pretty no doubt when in flower.  Yet it sinks its roots in so deep, making it hard to pull up.( I am disabled now, so cannot stand to use a fork.) Being a Perennial as well it spreads underground making this plant a pain to get rid of.
Shot using a Helios 44m. A vintage lens on a m42 mount