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Shield Lichen

Parmelia sulcata


Greenish blueish, crusty, flat lichen, with a black underside


Lichen is growing on a metal fence near a forest


A lichen is not a single organism, but a symbiotic relationship between 2 fungi and an algae. Some lichens grow very fast, while others grow very slowly, and can live for thousands of years. Lichens also live in a wide range of habitats. Some live in the tropical Amazon Rainforest, while others live in freezing Antarctica and Franz Josef Land.

1 Species ID Suggestions

Brian38 a year ago
Hammered shield lichen
Parmelia sulcata Parmelia sulcata - Wikipedia

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Spotted by

Pleasant Hill, Oregon, United States

Spotted on Mar 6, 2022
Submitted on Mar 6, 2022

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