Harbinger-of-Spring (Erigenia bulbosa) may be Kalamazoo's earliest true wildflower. They are also known as Pepper-and-Salt. The flowers are tiny and easy to overlook. I tend to think of April 15 (tax day) as the start of southwest Michigan's wildflower season, which means I frequently miss these early bloomers. This year, I saw a post on the Kalamazoo Nature Center's Facebook page and went looking for them.
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.