I thought this was an aster of some sort, and it appears to be in the aster family, but Spotted Knapweed (Centaurea maculosa) is not as nice a name as I would have given this wildflower. Evidently it is considered invasive in other parts of the U.S., and is native to eastern Europe. More invasive plants to come. . .
Learn to identify one hundred species of flora within walking distance of your home! scsours began this challenge in July of 2008, and I was eager to hop on the bandwagon about a month later. I've remembered much and learned even more. It's been a fun but slow process. Spring has finally arrived here in Massachusetts, and I will hopefully be posting often soon.