A member of the lily family, the Trillium that we know in Michigan, is also plentiful all across the Upper Midwest and Northeast. It's also known as the "White Wake-Robin", and in French, "Trille Blanc".
Following the link under the photos will take you to information about this complex and scientifically important plant. It will also explain the inexplicable: those leaves? They're not leaves. And the stem's not a stem. WTF??
Around here, it's just the final sign that Spring has sprung.