David, I 'get ' you. I first noticed that plant last summer near here. With Muddy's help, I identified mine. I was quite stoked to learn to identify something fairly widespread, yet till then totally unnoticed and unheard of by me.
In the same park, I also found and learned about cow-wheat, Melampyrum.
And another very humble (read = somewhat trashy) nearby park, Medeola virginiana
Being able to find 'special' plants makes these places and these little suburban walks more fun.
My new favorite phrase "What the Floerkia!!"