When I set out for the north, I had two asters in mind. The longleaf we saw two days ago, and this heartleaf. By noon I had seen them both - two that you won't see much of if you get very far under the bridge. This was practically under the bridge. There's a nice flat running west from the bridge where you can get a first look at Upper Peninsula flora. Northern heart-leaf grows in IL, IN, MA, ME, MI, MN, MT, ND, NH(T), NY(E), SD, WI, WY, AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, YT, and SK. Mackinac Co MI, 8/10/19.