Umbilicaria hirsuta, commonly known as hairy navel lichen or granulating rocktripe lichen

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Photo credit: © Henri Koskinen / Alamy / Afripics
License: Royalty Free
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Keywords: finland, foliosa, granulating, gray, grey, hairy, harmaanapajäää, hirsuta, lichen, lichens, lobate, march, napajäää, navel, rock, rocktripe, spring, springtime, surface, umbilicaria, äää