I had thought to avoid garden escapes for a while. But lanceleaf tickseed is a little different. It is a native plant. You might think of it as Jean Valjean, returning to the world where it belongs. Although I would almost bet you that this has escaped in France too. It has been recorded in China and Japan. The Javerts of the plant world consider this invasive in some places, and would recapture it if they could.