Common Sunburst Lichen

Xanthoria parietina is a common and widespread lichen-forming fungus in the family Teloschistaceae. Commonly known as the yellow wall lichen, common orange lichen, or maritime sunburst lichen, this leafy lichen is known for its vibrant yellow to orange coloration and environmental adaptability. First described by Carl Linnaeus in 1753, it has become one of the most thoroughly studied lichens, contributing significantly to scientific understanding of lichen biology. Unlike many lichens that are sensitive to pollution, X. parietina grows in diverse habitats—including coastal rocks, urban walls, and tree bark—even in areas with high levels of air pollution and excess nitrogen.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Common Sunburst Lichen being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

• Xanthomendoza fallax
• Xanthoria calcicola
• Xanthomendoza hasseana
• Xanthomendoza ulophyllodes

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Lecanoromycetes

Order

Teloschistales

Family

Teloschistaceae

Genus

Xanthoria

Species

Xanthoria parietina

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