Tar Spot of Maple on Bigleaf Maple in Olympic National Park
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Tar Spot of Maple on Bigleaf Maple in Olympic National Park
Fungal disease known as Tar Spot of Maple (Rhytisma pnctatum) on a fallen autumn leaf of Bigleaf Maple (Acer macrophyllum) in the Staircase Rapids area of Olympic National Park, Washington, USA, October, Olympic_Peninsula_Autumn-45
