Umbilicaria mammulata lichen, which produces a purple dye, growing on rocks in Shenandoah National Park, Virginia, USA.

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Size: 2848px × 4288px
Location: Shenandoah National Park, Virginia, USA
Photo credit: © Rebecca Ore / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: boulder, field, lichen, lichens, mammulata, national, park, rocks, shenandoah, umbilicaria, virginia