Photo 117635854, (c) Elliot Greiner, some rights reserved (CC BY), uploaded by Elliot Greiner

Attribution © Elliot Greiner some rights reserved Uploaded by elliotgreiner Source iNaturalist Associated observations Photos / Sounds What Black Tar Spot (Rhytisma acerinum) Observer elliotgreiner Date March 27, 2021 12:52 PM EDT Place University of Michigan, Ann Arbor, MI, US (Google, OSM) Date Added March 27, 2021 06:52 AM HST 3 IDs Research Grade View Sizes small medium large original