Wild Ginger (Asarum canadense) has an interesting flower that blooms at ground level, beneath the leaves. Most plants elevate their blossoms to attract flying pollinators but Wild Ginger is pollinated by ground-dwelling beetles or flies. Later, its ripe seeds are dispersed by ants who collect them for the nutrients in each seed's elaiosome.
The plant is widely distributed throughout woodlands in the Eastern United States and Canada.
Wild Ginger is currently in bloom in Kalamazoo. The flowers aren't attention getting but they are worth a little search. I look for colonies of the plants (each with a pair of round-heart-shaped leaves) and then look underneath for the blossoms.
I teach economics at Kalamazoo College. My wife is also an economist. We were on sabbatical in Europe for the 2014-15 academic year. (Salamanca, Spain, followed by Oxford, UK.) We were in Uruguay for the 2006-7 academic year.