Here’s a clue: Nootka lupines (Lupinus nootkatensis, Fabaceae) do not grow in the Maryland Piedmont.
I’ve been travelling and won’t be home for a few more days, but rest assured I have plenty of wildflower pictures to share, as soon as I have a chance to develop them and identify and research the plants.
Here’s another clue: I’m posting from a cafe (free wifi!) at lattiutue 65°41′ N, and lupines are an introduced species here.
More in a few days!